You say you saw a doctor who diagnosed you with a problem. Then, if I have this correct, you went to a random site online and started a high calorie diet? I'm confused -- do you have a medical problem or a medical problem induced by your extreme dieting? If the latter, why are you going on another extreme diet? Dieting doesn't really work --- changing your permanent diet and your energy output does. It might go more slowly but it will get you where you want to be all the time, not just for a month or two. But given you've seen a doctor and have a problem, I'm wondering if you asked your doc what to do? And since docs don't know a whole lot about nutrition, were you sent to a nutritionist to get you to a healthy way of eating? (I would look for the ones who call themselves holistic nutritionists, as mainstream ones don't really push healthy food and that's important).
My doctor only diagnosed problems after I had already been dieting for 18 months so the damage was already done :( I am just eating normally now. It is not supposed to be a high calorie diet, I just googled how much a person is supposed to eat and there is a calculation you can do based on height, weight, age, sex, and physical activity. Mine came out at about 2000 which seems normal from reading online. But I have been on 900-1000kcal for so long, 2000 is a huge increase and I am worried about getting fat and also don't know how long I should do this or if it is even necessary. The calorie information online is scientific, but there is no good info about how to get a stable metabolism and what you should do if you put weight eating less than the recommended daily allowance. That's why I'm asking here. I saw bodybuilding websites where people talked about the same thing, someone was putting weight on by only eating 1500kcal a day and people said it sounded like a medical issue, like thyroid etc. I can ask my doctor to help with this but it might take 2 more weeks and he might not even know and may refer me to someone else. In the meantime I am putting weight on each day.
Thanks that helps. I am pretty sure the diet caused the anaemia and other problems, so I am thinking that will go now. The palpitations certainly seem to be gone already. I don't know if there was any permanent damage, I assume not but I was curious. I am eating a lot more now and I am going to start doing a bit more exercise to my routine to hopefully keep the weight off. It confused me because even at 900-1000kcal a day, I was only losing weight gradually. So I am worried that at around 1500 I am eating now, the weight will go up rather than down. But I am going to try to switch in more protein and do a bit more exercise.
YouTube search Dr Berg's video: How To Fix A Slow Metabolism.