Random Swelling

So anyone else had a seemingly random thigh swelling? For a week now Hubby's right thigh has been swollen. Not red, not tender, but really swollen. He's been on a low salt diet for a year or more so I know that can't be it. Swollen fingers ands every once in while toes - yes he has Raynauds but a swollen thigh just above the knee? Really? (knee itself is not swollen.

Also... not related to the above issue....Anyone take fish oil supplements and does it help? We are hesiitant to add anything to his med/vitamin routine without asking the doc first but if we have to wait until July to see the doc next may this couldn't hurt? I've also read good thing about Ginko but for sure we wouldn't add this without consulting the doc.