Try using flip-flops or walking without shoes or foot forming shoes. You might have too much ankle support causing weakness around the joints. If you're seeing doubles and/or feeling dizzy Ask your doctor about getting your med levels checked to see if they are in a toxic range. Taking meds at the same time everyday with food should lessen the side effects. I hope this helps. Have a good day.
I take Keppra several times per day, and from my poor-timing errors, that sounds a lot like my balance loss when I have doses too close.
I hope that is NOT the sensation people are chasing for "getting buzzed." Crawling to the bathroom is not fun.