TW: Eating Disorder and Cardiac Issues, Need Advice

EatingHelp

Hello guys I am here to ask for some help after getting dead ends everywhere in the health care system here in Ireland. I am asking for advice for my girlfriend or some kind of experience you had. My girlfriend struggled with Anorexia Nervosa for a long time now, almost two years but she is been eating okayish lately. So basically she starved herself until she was bare bones and it really affected us both but after months of no help from any of her doctors she saw, I stepped in and helped her eat. She is on a steady diet of 1500-2000 Calories a day and she counts everyday to make sure she is having enough. She is still struggling with ED and refuses to eat but I try support her during meals. Anyway last year around this time she only weighed about 45 kg and was in hospital for a month for starving very badly.  After she was out of hospital, me and her worked on a steady low-fat (she doesn't eat anything with fat in it or oil) that's when it started. She started rapidly gaining weight like almost 2-3 KG a week and her diet was very low 1200 calories back then, protein bars and yogurts and plain foods.. but people said it was normal to get some water when people start eating after starving. So after so many breakdowns, I kept ensuring she keeps her diet steady.. As weeks turned into months the weight kept going up and up. She got swollen and started having complications.. She gained and ended up at 86 kg and her complications got worse. She couldn't walk for extended period or a small walk. If she walks down the road just 20-30 steps she would get super exhausted and suffering to breath. There is been times where she has to sit down on the sidewalk because she couldn't breath and her heart would feel stabbing pain. Her arms are be swollen like upper arms, upper legs and stomach and jiggly. She has to use wheel-chair most times when we are travelling because she can't walk. At night times she wakes up with stabbing pain in heart and cries alot. It's been a year and nothing has changed only gotten worse. There is been times where she would struggle to breath like almost choking and gasping to breath. Her diet hasn't changed. She doesn't eat alot still or anything with oil. She was having protein bars but stopped few months ago. In last three months she has gotten Electrocardiogram (ECG), Holter monitoring, Echocardiogram few times but each time they all come back healthy and even a blood test which was healthy. If we compare her pictures she is getting more and more swollen month by month and her heart feels like it will explode any day. I am struggling to tell her to hang in day by day.. this is made her so suicidal because of weight gain and struggling to live. I have seen her cry day after day and ask for help but doctor's say she is fine since her vitals are fine but I psychically have seen her gasp for air like a choking. Even after eating she feels so full after only few spoons she still manages to finish small portion and cries from the pain because her stomach feels like it's gonna burst. I feel like she has some kind of heart condition because sometimes when she uses a blood pressure monitor it shows that she has irregular heart beats. What should we do in this situation? The doctors seem to tell us it's in our heads and she is fine but she can't do anything psychically. She has to sit all day and take taxi's everywhere or when travelling use wheel chairs..