Post Covid Symptoms. That caused this?

My family was hit by Covid in April. My 2nd RTPCR on 7th May again came positive after 26 days of isolation and medication for 10 days (ivermectin, doxycycline, vit c and zinc , pcm). Used to have cough and cold. On 28th May I started getting a weird headache on the right side of the head, neck and limbs. While walking or even sitting I used to feel as if I'm walking in a train. Consulted a physician who prescribed some painkiller and meds for muscle spasm and vertigo, but no relief. After sometime I consulted a neurologist who prescribed Ecosprin 75 mg, ZacD Neuro, Evion 400, Clonezepam. After taking meds for 15 days there was some relief. Is it possible that I might have blood clots that caused this?If yes then what are the next steps as I still get those headache and unsteady gait.