I have had migraines for 4 years almost on a daily basis and noth...

I have had migraines for 4 years almost on a daily basis and nothing has worked. Finally started Topamax, the first week iI felt like i had a stroke, my speech was slurred, I couldn't concentrate, I was exhausted couldn't make complete sentences, numbness in hands and feet and every thing tastes bad., I had been on 4 pills a days to start so decreased to one-i believe it it 50 mg. worked well then headaches began again after 2 weeks, so increased to 2 then again in a few weks to 3 now i have had only 3 migraines in 3 months. Still have the numbness and taste aversion but I have never felt better as far as migraines. My new problem is I am having a lot of digestive issues including cramping and constant acidy, bubbly,gassy, bloating feeling and no gas x, pepto or anything works??? Is this a side effect or something unrelated??