I'm 20 years old, pretty alright except for the thyroid condition for which I get treatment and it doesn't give me any big problems. But during the recent 14-16 months I've been going through hell. I was close to fainting, but it didn't happen in the end, so I completely ignored it. Then it happened again and again. 3 times altogether. Always the state of being close to fainting, but I never lost counsiousness. I realized that not eating could have been the problem, but I was scared, so I just went to the doctor. I had blood tests and an ECG test. The latter was okay except for my heart rate which was around 150, but I know my heart doesn't beat that fast usually. I just stress out when I have to go to the doctor. Turned out I had anemia. The doctor told me to take iron supplements for the next 2 months. I did so, but I still wasn't eating right. I still don't eat enough. I can go on two slices of pizza, a piece of chocolate and lots of Coke during the whole day. I know I should change my eating habits, but I always fail. Although my friends tell me I'm too thin, my BMI is 19 which seems fine. Anyway, right after having those tests I started experiencing heart palpitations, sometimes they occurred 5 times a day, sometimes 5 times a month. At the same time I was going through quite a difficult time in my life and I had episodes of depression and anxiety. I couldn't go out anywhere thinking I would faint. I cried every day. I'm much better now and doing pretty okay, haven't been severely depressed for some time now, but I'm worried about my heart and don't know what the hell is going on with it. Except for the palpitations which happen less often. I haven't had too many of them except for today which is why I'm writing, I just climbed the stairs and it started, lasted for only a couple of seconds, but got me scared, I don't feel dizzy or anything when they happen. I'm just afraid. I haven't felt like fainting since January, but during my 3 episodes I never felt any palpitations or heart sensations. Fainting and heart stuff never occurred together. When I felt about to faint, I was around people and always thought that it might happen which suggests it could be anxiety, but maybe I'm just explaining my symptoms. When I was a kid, I played sports all the time and never had any problems, they started when I was having some problems with myself and finding my way in a so-called adult world. Maybe eating well would solve my problems, but I can't seem to get my **** together and spend more time on eating. I'm a student and now I started working which leaves me with very little time.
I'm not a native speaker, so sorry for any mistakes. Hope you have some advice.
I would definitely be ruling out any serious cardiac issues going on; more cardiac testing, i.e. holter monitor, an echocardiogram, etc.
As for things you can do yourself; you already know, you just have to get serious and do it, i.e. proper nutrition.
You might not think the Hashimoto's is a problem now, but if you keep going in the direction you are, it will be a BIG problem.