Tingling and numbness in brain. Damage?

Hello Dr, Since Sept 20th I am having tingling in head. 26th September consulted a Dr and following prescription: Rejunexcd3 Pregabid NT 50 (During this treatment tingling was happening after 5-6hrs of wakeup)and continued till 14days then prescription changed to Rejunexcd3 same Betacap20 Pregabid NT-50 for 1 month approx. (Same tingling happen after 6-7hrs of wakeup) Meantime on 6th October I have B12 test and found 136.9pg/ml and brain MRI found normal and Vitamin D level also ok. After 2nd November consulted another Dr and he prescribed almost same but betacap two times Neruokind OD(1time) Pregabid(1time) Betacap Tr-20 capsule(2times) from 2nd November to 29nth November I was perfect not tingling at all but now from 29th November I start feeling tingling in head after wakeup of 6-7hrs even I am taking above treatment continually and meantime I checked B12 level again and found 412pg/ml on 26th November Why tingling happening inspite of treatment is it B12 damage ??? Or anything els