I have type 2diabetes recently I have had problems with my vision.my left eye in particular,which when looking to the left goes completely out of focus,I have recently had my eyes tested at opticians,with eyesight being quoted as very good with no need for glasses.i have also been experiencing blurred vision in both eyes,and dizziness.dont know if connected but have also had a bad neck,stiffness tension with pain to neck and shoulders,have in the past been diagnosed with scoliosis, and suffered with bad back due to nature of work,(builder) any advise would be helpfull