Having tingling sensation and numbness in right leg, that radiates from right low back slightly above buttock (past couple months). Have beta thal trait and hypothyroidism (in control). As per ortho suggestion, took cbc, arthritis antibodies test and xray. No issues except my Hemoglobin has dropped to 11.3 from 12.3 ( it was consistently 12.7, 12.4, 12.3 last 3 years). Xray shows compression in t12, l1 , l2 area but mild. Renerve plus was prescribed but no improvement so far. What could it be?