Left face pain. For black fungus test?

Dear sir/madam I was covid mild symptom patient. Tested negative before 15 days. Today is my 33rd day now I am free from all symptoms of covid my ct scan 0/25 on 7th day of covid. I given birth a baby on. 28th March by C section. I have taken vitamin calcium and folic acid for one month only after that I was covid positive so I stop these medicines and started Covid medicine prescribed by doc for 7 days after that I have not taken any medicine of Covid nor any vitamin calcium folic acid prescribed by my gaynologist. Now I am facing a problem of left shied pain in my face from evening today little pain in teeth and right side leg and left eyes. Can it be black fungus ,? Please suggest Should I go for Black fungus test ? No Sugar patient