Hi Han_Xander, I am on 80mg of slow release Propranolol and haven't gained any weight or had any problems at all using it. What it does for me is just 'quietens' all my physical symptoms of stress/anxiety e.g flushing, booming heart beats, and the overall 'jitteryness'. It's a beta blocker and unlike say, Diazepam, it doesn't 'calm you down', but masks the physical symptoms. I doubt that the Propranolol would make you more anxious. Hope this helps.