A woman who suffers from a rare condition which regularly causes bouts of violent vomiting after eating cannot access potentially life-changing treatement on the NHS.

Samantha Anderson, 30, of Milfield Avenue in Walthamstow, has since 2011 lived in almost constant pain and been regularly hospitalised by Gastroparesis, which prevents her stomach from emptying. 

The incurable condition causes repeated vomiting when Ms Anderson eats or drinks, leaving her weak, tired and dehydrated.  

As a result, she has lost almost half her body weight in the last four years and is often admitted to Whipps Cross University Hospital in Leytonstone and placed on a drip.  

Samantha, who blogs about living with the condition, has been forced to give up her job as a teacher at Buxton Primary School in Leyton and says she has no social life. 

But despite the seriousness of her condition, treament involving a gastric pacemaker, to reduce the symptoms and allow her to lead a normal life, is not available on the NHS. 

Now her family are trying to raise the £25,000 needed for her to have the procedure done privately.   

Describing her predicament, Samantha said: "It was really awful at first and took a year to diagnose. 

"I was sick a lot and made to feel like it's your fault and you have some kind of eating disorder.   

"Before I was a size 20 and now I'm a size 8.  

"I was a workaholic and loved the gym and socialising.  

"Everything changed drastically and I lost everything.  

"I've been through so many treatments and tried everything - a gastric pacemaker is my last option.

“When I found out the NHS wouldn’t fund it I felt worthless. It was like I had been robbed of any opportunity to have a normal life.” 

Her supporters have raised a total of £2,600 so far after Samantha's 16-year-old niece, Anais, and best friend Jordan Billington secured a further £100 by taken part in a 'gunge challenge' at Heathcote School in Normanton Park, Chingford, this morning.  

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Samantha on a drip at the Royal London Hospital in 2013  

Samantha said she is hopeful the operation will change her life.  

"I want to be a bit more human again," she added.  

"It would mean the absolute world to me, just to go back to working a bit harder and spending quality with family and friends.  

"I don't expect a miracle from this, I just want to enjoy the simple things in life."  

Samantha's father, Ronald Anderson, will be walking in Station Road, Chingford, on Saturday and Sunday dressed as a Smurfette to raise money. 

A spokeswoman for NICE, said "NICE have not yet been asked by the Department of Health to produce recommendations for the use of gastric pacemakers.

"Until a recommendation is made decisions for funding should be made locally with the support of NHS England."

NHS England has been contacted for a comment. 

Click here to visit Samantha's blog.

This Is Local London:

Anais Anderson (left) and her friend Jordan Billington after being gunged this morning at Heathcote Secondary School