i had my baby 5 months ago i am breastfeeding, i have a wierd fluttering sensation in my lower stomach area. i have not put on weight i dont think im pregnant due to scar tissue its been impossible to have sex in 5 months we only did it one time and not even all the way in so i cant be pregnant.. iv also been very tired, weak and getting alot of muscle soreness in my leg joints also as if i have been working out, is there anything else wrong?