I am 61 yr old female with high blood pressure, diabetes, and congestive heart failure. I take Lantus, Metformin, Losartan, 81 mg aspirin, Clonidine, Carvedilol, Simvastatin, Omeprazole, Amlopidine, and Spironolactone. Recently had bad bout of sinusitis and take zyrtec and tessalon. I've had 2 bad fainting spells in a month. Starts with bad nausea then I faint. What could be the issue?