my husband was advised mega free flex tab,kineto dp and rabium dp for his severe pain in knee five days back.Also he was advised to go for an x-ray of knee alondwith D3,Calcium levels,B-12,RA factor tests.He has develoed stomach ache and gastric...also yesterday he had a jerk in lower back yesterday and now his head is spinning the moment he has got up we hv gone for tests today pending x-ray so report will be availiable later...wht to do now? my husband is around 36 years,weight is around 89,height is 169cm.has long travelling daily by car daily.he is not dibetic and no cardiac problem but had very low D 3,B 12 levels alongwith cervical spondlosis when we consulted an ortho 6 months back