Following a hospital spell in December. I was changed from symbicort to relevant. I was on it for a while, but once steroids wore off its not been effective. Changed to seritide for 3 weeks now, makes me feel sick and shakey. Doc says I should try it for longer but I'm in the middle of my gcse's and want to stop. I have previously had fostair and this did the same. Are they similar drugs? Is there anything left to try?