Hydration symptoms and conditions

Please can anyone who has suffered anxiety/panic/depression/suicide on Doxy tell me how long after stopping taking it this went away???

I have been on this antibiotic for pneumonia for a week. I already have a possible ulcer and have a prescription for zantac. I am on 100mg BID for two weeks. Since taking this medication my ulcer has become much much worse with frequent heartburn and a lot of drowsiness/lethargy. I feel like I float through my day and am confused and using the wrong words a lot, and just not paying full attention to anything. I have a constant pain right under my sternum that flares up and a lot of mid to lower back pain, esp. at night. I have had a headache for the last four days. I did some research and found that ANTACIDS SHOULD NOT BE TAKEN WITHIN TWO HOURS OF DOXYCYCLINE!!! Bummer for me, since I have been drinking Mylanta like it was my only source of hydration.

Chest pains, severe angina every month for last 9 months
loss of eyesight in right eye-substantial
severe eardrum pain
fatigue
de-hydration-extreme-never enough water and I drink alot
dizziness
foggy head

All related to potential side effects. Read the accompanying pamphlet with yasmin. They are all listed. We just don't read...