Headache, weakness, vertigo, high

Sir/mam, I got very high fever last year for 10days continously..after that since an year I'm facing severe weakness..I used homeopathy medicine when english medicine is not working properly at that time..weakness used to come and go..but now since 2 months my head is spinning..I can't walk for 2min..if I'm walking i feel like ill fell on the ground..body is so weak..and I'm feeling like something struck in my throat and heart rate is rising and it is not showing normal when I keep pulse oxymeter to the finger..I have gone through all blood tests cbc,thyroid,hormones,liver,serology,echo 2d,ecg,chest xray,vitamins,abdomen ct scan and everything..all tests was showing I'm fine..but tests showed vitamin d and vitamin b12 deficiency..I took supplements but its not working..and I have gastric where I get large burps with more sound and regurgation also..please let throw me out from this situation if u identify solution.