Eyes wide symptoms and conditions

I am a caregiver for my 75 yo stroke victim Mom; on dialysis, diabetes and hypertension. I took her to the ER fearing she was suffering from either another stroke or heart attack but they couldn't find anything instead of spots of pneumonia in her lungs. The ER doc prescribe her Levaquin 500mg, and she became "looney" for 5 days; verbally combative, talking to herself incessantly while slipping in and out of consciousness in between. Short term memory was lost - big time! On the 5th day, I read the med literature Walmart Pharm inserted in the bag. IN BOLD LETTERS, IT WARNED: BE CAREFUL IN GIVING THIS MED TO ELDERLY. They may be more susceptible to suffer from side effects of dizziness, weakness and tremors. So I stopped giving it to her that very day, the next morning she open her eyes wide but slept for 2 days. As if to regain strength from what she went through for 5 days. Then, 2 days ago, she suffered from tremors or muscle spasm in her injured leg which caused her to scream in pain. I wonder if this still the side effects of Levaquin!?!

Leizel S.
Gloucester, VA