Do you think I'm hypoglycemic?

I had an eating disorder for 2 1/2 years, but I've been eating normally for around 6 months, although I do kind of slip back into disordered eating occasionally. I was anorexic and I was always dizzy, I would feel faint every time I stood up and I had weird heart rhythms. Now I still sometimes get dizzy and my heart jumps once in a while, I'm wondering if this has something to do with blood sugar, or if it's just because of my eating disorder and if it will go away by itself.