Hi, Thanks for asking. I understand your concern. - Your disturbed toilet habits possible by bowel infection/digestive enzyme defeciency can cause abdominal bloating leading to respiratory trouble - long smoking habit too causes damage to respiratory organ .. breathlessness,raised blood pressure or heart problem. Vericose veins is diatation of veins in lower limb due to blood stagnation (due to weak vein valves / lack of body movements ,exercise).which can result from muscle weakness ,over weight or lack of movements due to breathing problem. In short you need through health check up with special fo us to digestion/breathing &venous drainage from lower extremity....&after analysing the results needful refferal to suitable specialist (gastroenterologist/chest physician/vascular surgeon)would lead you to specific way to relief from your problem . Till then take rest.eat light & nourishing foid,take carminative mixture over the counter &derriphyline pilltwice a day after food. .drink sufficient warm water.sleep in propped up position.&be relaxed.. you are going to be fine with proper treatment offered by expert. Thanks.