Three weeks after taking Lisinopril (10mg 1x) I developed a sever...

Three weeks after taking Lisinopril (10mg 1x) I developed a severe back ache that migrated to my lower right front section. I started having problems with the strength in my leg muscles to the point that I could no longer walk without the fear of falling. Two weeks after I stopped taking Lisinopril, the back and lower stomach problems went away and I can now walk 20 feet but still have problems with balance. I still can not walk ujp any stairs or lift my leg more than 1 inch. Never had this problem before I took Lisinopril. I have not been able to work now for 2 months.