Ive experienced severe uxplained rapid weight gain and facial swelling taking meloxicam right after surgery, and stopped taking after 2 weeks on it. But I've contd to rapidly gain unexplained weight, now a month later. Totalling 20 more pounds since i started, to my consistent & original weight of 130lbs. What is going on, and is this possible or typical? Ive never in my life, had trouble loosing weight in more than a cpl days, or ever gained more than 5-10lbs tops in my life, Cuz I've always had trouble gaining weight. Please help!!!