high blood pressure
"Before I started Toprol XL I had migraines everyday for a year I had no idea that I had high blood pressure and it wasn't really high it was borderline. Anyway I started taking the Toprol and my migraines decreased and the palpitations seemed to stop after about a month. I ended up only taking Toprol for 8 months and I had no more migraines or palpitations and of course my blood pressure was under control. It stayed that way for about a year and a half until I became pregnant and that seemed to trigger it all back. But I did the same thing and am fine now and I never experienced any side effects."