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Feel nauseous after taking a caffeine pill

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I feel nauseous. I also had a strong weird smell like ammonia stuck in my nose for an hour after taking a caffeine pill. I took 1 caffeine pill, 3 cranberry extract (diuretic), and a calcium plus vitamin d supplement with my lunch. Why do I feel this way? Also, I keep taking my temperature and it ranges from 95.5-95.8. I wonder if it's my thermometer because it keeps giving a different number and one time said 94.5. Do you know what's wrong with me? Please help. I'm scared. Also my one eye is twitching weirdly.

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Category: Family Physician-GP
Dr. John Monheit is online now

Expert:  Dr. John Monheit replied 4 Days.

Hello, I understand your concern. Caffeine is a central nervous system and metabolic stimulant. The effects of caffeine vary from person to person and usually begin half an hour after consumption. It causes nervousness, irritability, restlessness, insomnia, headaches and palpitations. Because of its diuretic effect, there is every chance of dehydration. So a combination of pill, caffeine pill and cranberry extract together has a diuretic effect. Increased amounts of caffeine leads to dependency due to increased tolerance. Caffeine may essentially impersonate adrenaline and also a risk for type 2 Diabetes It may also lead to nausea in some people. You also mentioned about your temperature recordings that is in no way connected with caffeine. Probably the recording may not be right. So it could be a technical error. I would suggest you not to be worried and stop taking temperature unless you have a fever. If you are still in doubt then consult your physician. Hope this helps. Thank you.

Dr. John Monheit
Category: Family Physician-GP
Residecny: North Colorado Family Medicine
Medical School: The Chicago Medical Center
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