Sister of Arizona woman, 28, found on Indian reservation after being missing for a week says family is MYSTIFIED by the disappearance and have 'no details' as she recovers in hospital

The sister of an Arizona woman who was missing for a week before she was found in the desert in a critical condition Sunday has revealed the family remains mystified about the disappearance 

Jessica Goodwin, 28, was reported missing on January 11 after calling out sick from her job as a chiropractor and leaving her home under suspicious circumstances.

She was found on Sunday on an American Indian reservation near Phoenix, Arizona, after cops tracked down her cell phone signal and was airlifted to hospital with severe dehydration.

Her sister Angelina Goodwin says Jessica is recovering in hospital and responding to treatment but that the family still has 'no details as to what happened yet'. 

Jessica Goodwin, 28, was found on Sunday afternoon near Phoenix at 4.45pm in a critical condition after being missing for six days. Her family has yet to discover any details about her disappearance. She is pictured above with her grandmother

The 28-year-old, pictured,  was reported missing on January 11 after calling out sick from her job as a chiropractor and leaving her home under suspicious circumstances

In a social media post, Angelina Goodwin thanked those who helped with the search

'Just asking for privacy for Jess as she recovers and heals from this terribly traumatic event,' Angelina told Fox News. 

She added that the family is 'just asking everyone to be patient'.

The Pinal County Sheriff's Office confirmed Tuesday that Jessica has now been transferred out of the ICU as her condition continues to improve.

'At this time there is no evidence of foul play, and no indication a crime occurred. We ask everyone to respect her privacy while she recovers,' a spokesperson told DailyMail.com.

Jessica vanished from her home in Gilbert, which is on the outskirts of Phoenix, leaving behind her dog, and was last seen in surveillance footage driving her white 2013 Volkswagen Jetta, driving away from a car wash, which was the last place she used her credit card.

The car was found with minor damage near the car wash on Thursday night but there was no sign of her.

Police at the time said the 'location and manner' in which the vehicle was found was 'suspicious in nature' but still did not suspect foul play.

In a GoFundMe established by Angelina this week to help her sister pay for her medical bills, she appeared to reveal that Jessica's car had been in a crash when it was found.

She vanished from her home in Gilbert, leaving behind her dog, and was last seen in surveillance footage driving her white 2013 Volkswagen Jetta, pictured

On Sunday afternoon, police discovered Jessica after tracing her cell phone signal to the Gila River Indian Reservation, a desert area some 30 miles from her home

Jessica left her home in Gilbert, on the outskirts of Phoenix, on January 11. She left her dog

'My sister Jessica Goodwin was missing for 6 days. Her car was found crashed in a wash and she was later found in the desert fighting for her life. She is in the hospital recovering now,' Angelina wrote. 

'I am trying to raise money for her when she is released. Anything helps! She is going to need so much support with medical bills, car repairs, and any further treatment she might need. 

Goodwin's friends said she would never ordinarily leave her beloved dog alone in her home 

'I appreciate each and every person who has radiated positivity and shown incredible love and support for my sweet baby sister.'

The page has raised $4,760 as of Tuesday evening.

In a post to her Facebook page, Angelina also thanked those who had searched for her sister. 

'My sister is alive and in recovery. THANK YOU to the PCSO and all our friends and family for sharing, searching and praying,' she wrote.

The Pinal County Sheriff's Office has said it is 'still investigating what led up to her disappearance' as they confirmed that Jessica had been found in a dehydrated state.

While they say they do not suspect foul play, much of the details around the disappearance are unclear.

They had previously said she vanished in 'abnormal' circumstances but have given no further details.

Angelina Goodwin, pictured with her sister center, has asked for privacy

Many of the details surrounding Jessica's disappearance remain unclear. Police said she vanished in 'abnormal circumstances' but have not shared other details

Her friends and family raised the alarm after she failed to show up at work on January 11.

When her car was found near the car wash with damage, they became even more worried.

'The location of where her car was, was not where she would have taken it.

'Even if she was going to go back here for a 30-minute drive, she would take her dog,' her friend Chandler Storck told Fox 10 last week.

Jessica, pictured above, was moved out of the ICU on Tuesday

He said her disappearance was completely out of character.

'These behaviours, which is why we are so worried because it's completely unlike her.

'If she does go somewhere to clear her mind, she'll take her dog for sure.

'If she's going to go for a drive, a 20 or 30-minute one, she's going to bring her dog.

'If she goes out of town, she brings her dog. She never leaves her dog for longer than a night,' he said.

She was found on the Gila River Indian Reservation, a desert-like area some 30 miles from her home.

In a statement on Facebook on Sunday night, Pinellas County Sheriff said: 'Phone records led PCSO Detectives and Search and Rescue to an area of land on the Gila River Indian Community.

'During their search, Goodwin was spotted around 4:45 Sunday evening.

'She is currently in critical condition and is being airlifted to an area hospital.'

Sheriff Mark Lamb added: 'This is the outcome we have all been hoping and praying for.

'I commend our Detectives and our Search and Rescue team for their commitment and attention to detail.'

It's unclear if Goodwin is married or single.