I first noticed a swelling to my left arm, just above my elbow 4-6 weeks ago. I was at work and was constantly readjusting my sleeve. Thought nothing of it. I had a weeks annual leave and checked my arm, still there and thought oh it would go down as I'm not using it. Well. It hasn't. Took myself to GP, was sent to ACU, ruled out a clot due to my history of them. I measured my arm, it's 6cm bigger than the other. GP is referring me to breast clinic, US with doppler, and a chest xray. Has anyone else had something similar? I'm at my wits end now at what it could be.