Hi. I have arthritis in both knees ,right knee is worse than left. I,ve been told that I would probbley have to have a knee replacement on the right knee do to cardlige .i also have a lot of inflammation once my eyes turned really red and stayed that way for about a month,my eye Doc.said they usually see that in patients that are really bad arthritic or someone that has lupus.in the past five years I,ve had a lot of joint ,feet and ankle pain so I got checked for lupus and one doc said it was and the other said I didn't, but I notice about three years ago I started to get theses blister like spot on my legs and that's the only place they appear especially when my legs swell and that's most of the time . Do u think that may be some type of lupus