Please help! Started taking carb 6 weeks ago ,when I was newly diagnosed hyper,I am suddenly gaining weight!! Last week my weight was 8stn 4lb and I've put on 3lb in a week!!! I have a blood test tomorrow at 10am is there anything I should do before hand,like take meds after bloods are taken?? I really don't want to put on too much weight ,I feel much better,I'm on 20mg carbimazol maybe that's too much??