I'm 62 Yrs Old Male, Feel Dizzy And Light Headed

i'm 62 yrs old male, feel dizzy and light headed feel like going to faint. my blood preasure is normal, and always feel like shortness of breath. my wife think i'm having low blood sugar. i think i have anxiety disorder.
currently i'm taking clopidogrel, simvastatin, losartan & zolpidem. my doctor appointment is on April.