The last 2 weeks, after eating a proper meal, i have been feeling light headed, almost fainted, dizziness like loosing sense of balance and felt i wasn't get enough oxygen , but not feeling out of breath. I noticed that it happens as soon as I eat a proper meal, and the first time that happened i ended up in hospital because I could not function at all, felt very weak. Could you explain these symptoms somehow? The doctor in the hospital told me that i should visit a cardiologists to check my circulation