Im 33wks and very obese, so have a massive belly. For the past couple of weeks I have had pain in my legs, mainly centered around my knees but occasionally up in my groin. It is much worse at night and really stops me from sleeping. The pain is a dull ache. Sometimes one leg is worse than the other. Im paranoid that it could be DVT but could it just be normal pains due to the extra weight on my legs, pushing on nerves, etc?