I have joint pains specially in knees.

I have encountered joint pains in knees, leg soles, little on shoulders and wrists in 2013 for first time. Rh factor was negative. Uric acid level was 6-7. I took treatment for almost an year in hyd and other places. All joint pain related medication I took. After that pains slowly came down. I even consulted a doctor in Bangalore one and half year back.That doctor said there is no problem with my joints and said it's actually 'Benign Hypermobility Syndrome' which means that my joints developed little loosely at the young age. Because of which I am facing problem of joint pains. He advised me to do just strengthening exercises. But now again I am getting joint pains since a week in my knee joints. Kindly inform what may be the reason for pains. again.