2 yrs. since arthro. knee surg. shaved cartilage, mri xray good. still hurts exercising. should i exercise regardless and ice after. seen spe.?

No: It is important to understand the pain and it's cause. Most important is to engage in a comprehensive physical therapy program. Consider injectional therapies that may help with the pain and dysfunction of your condition which i presume in osteoarthritis and or a meniscal tear. Seek another opinion with a primary care sports medicine specialist.