I'm 19 years old ,,, I always feel lightheaded and very dizzy ,and i have a feeling of palpitations and Tachycardia ... i have stomach problems such as feeling of fullness , bloating and feeling Nausea ,, i've asked a doctor since a month ,, he told me that i have Amoebiasis and Ascaris .. I Asked him if i've heart problems or diabetes and if i have to do Endoscopy he told me " no you are alright " ..