I ve been experiencing light headedness for the last 1-2 months. It usually happens when I stand up but occasionally it happens at rest. I have hypertension and diabetes so when it happens I always check my blood pressure and my sugar and they are always within the normal range for me as my pressure runs a little on the high side even with medication (150 s/80 s-90 s) (10mgs Amlodipine, 100mgs Losartan, 8mgs Doxazosin). I also take vitamins (GNC Women s Ripped Vitapack, Red Yeast Rice (for cholesterol)), B-12, psych meds (Lithium 300mgs 2x/day, Lamictal 200mgs 2x/day, Geodon 120mgs), Adderall 30mgs, Clonazepam .5mgs as needed, Dexilant 60mgs, Metformin 1000mgs 2x/day, Magnesium Oxide 400mgs, Methocarbamol 500mgs (temporary), Oxycodone 10mgs 3x/day (temporary), Reglan 5mgs 2x/day (2 months on, 1 month off, this is my off month) and Probio Slim. I ve been taking all of these medications for years and have never had a problem with side effects. As I was sitting here typing this, I had a bout of light-headedness and I was sitting down although it wasn t as bad as when I stand up. I have noticed when taking my blood pressure that my heart rate has been up ranging from 94-120. I always take my blood pressure when at rest. I am a smoker and non-drinker. I don t understand the sudden onset of the light-headedness spells. Can you help me determine the root cause of my dizzy spells?