I am a floorvinstaller n have been for 20 yrs. I basically have to kneel on the hard floor all day while sitting on my feet/ankles as there is no other way. I gave very good orthodic kneepads. my ? is my kneew are getting so bad I CANNOT work 60% of the time. my right knee in particilar hurts on the R & L outside edges if the tibia from surface of bone to deep inside the bone. there is also a hard painful protrusion about 1 1/2 to 1 3/4 in below my knee cap. first they said osgood-schlatter and that turned out wrong ( my knee swells to size of softball on front then swelling continues down to ankle over next cpl days) is very hot. must ust cane to get around. next diag was patellar bursitis ,drained knee just under skin below kneecap n injected steroids. no better after several attempts and monthe of time. now I am at a point I dont trust a diagnosis cause my fam doc and ortho doc seem to think it will go away..... well it aint and has been 10 months of recurring every 5 to 6 weeks. now I am having to consider not being able to work cause it hurts so bad. even walking does now. I need help n a understanding doc that listens to my say I aint no wimp. I have workef my but off since high school n now 44. my pain is starting to be disabilatating!