... One small clot in her lung another larger one in her upper leg (thigh) area. When she stands upright her affected leg goes mottled blue,brown,purple. Drs are saying keep moving around and this is normal. Never had any experience with this so I don't feel like this is normal. They have her on Xarelto (just the last few days) previously she received shots.(3). She gets lightheaded and feels like fainting as well when upright. Any suggestions?