I would just lessen your risks by staying hydrated, staying mobile, etc. after you are off xarelto discuss with your doc if it’s recommended you go on aspirin therapy. I know some people take supplements as well but that’s kind of a personal thing. Supplements are kind of a crap shoot.

You should ask your doctor for a blood test, to see if you have Factor 5 Leiden... a clotting disorder. My first DVT happened in 2001, and like you, I was sent to the ER for an Ultrasound. My GP did some research on his own, and found I had the genetic defect! I have now had 3 DVT's, the last one, a large clot in my groin, Feb 2, 2018, still hasn't resolved itself (had back surgery & had to stop my Xeralto for 5 weeks). Looks like I have at least another month before I'm back to normal.

I have had a PE in 2013 that was brought on by pregnancy, and just got over a DVT in my left leg behind my knee that was unprovoked. In both instances I was tested for clotting disorders, and was found to have absolutely none....at least none they can test for. My mother's side of the family seems to have "thicker" blood - she barely bleeds with wounds. I just got off my blood thinners ( I had a heck of a time with Xarelto and Eliquis, so I was on Lovenox which is the only thing that seems to work without a lot of side effects for me ) after 3 months when the clot was gone. I was encouraged to drink a lot of water, stay active, and wear compression socks. I also take an 81 mg asprin daily, and am on fish oil, both which have blood thinning properties. As long as your doctor deems activity OK, do it. It won't hurt you. I was told walking was fine when I had mine, just no banging the leg around too much.