Go faster symptoms and conditions

Man, I really messed myself up, I guess. I have been taking the 1.50 for a few years now. I am now 55, ...and lately, for the last twenty days or so, I started having daily, all day long palpitations. So I walk four miles a day, or whenever they start up..but the first thing I thought, was it was time to lower my thyroid..so I broke them in half..BIG MISTAKE...caused my heart to go faster, leg cramps. cold feet, then hot feet, hands, etc....so when I put it back after one week, I started feeling a little better..but still have the heart palpitations...so I figure time to buy some insurance and get it all in order...WOW...how terrifying...