I had a miscarriage at 14 weeks recently and i started having mild panic attacks. i still don't feel right 3 weeks later. should i worry ?

I am sorry for your: Loss. You need to take really good care of yourself right now. Talk about feelings including your recent pregnancy loss. Address problems. Don't avoid them. Aim for 7.5 - 8 hours of sleep/ night. Daily physical activity is optimal in a green space. Eat healthfully. Cut out junk carbs, caffeine ; alcohol (or moderate). Try qi gong, tai chi, acupuncture, acupressure, homeopathy, meditation, yoga.