hi im 4 weeks pregnant and im convinced im going to miscarry, iv got no reason to think that as i have never had a miscarriage before and have a very healthy 2 year old. iv been going to the toilet every half an hour to check im not bleeding and its driving me crazy. is it normal to feel this anxious? im also worrying about everything i eat and drink and i wont have sex with my partner as im scared of something happening, i wasnt like this with my first.