False covid positive. Things now?

I am 35 yrs diabetic.i got my first symtoms on 22 june that was minor cough which continued with low grade fever.i took claribid 500 musinac 600 for that for 3 days.my brother was not well frm 10 days so he tested for covid which came out to be positive. 4 members in my family are postive.on 27 june my oxygen level went down so i got admitted to hosp.my covid report came negative two times.but i was in icu so there was every patient covid positive. I shifted to normal ward after 2 days.i treated with iv monocef o for 5 days and now i was on tablet monocef o and azithral vit c for 7 days. I dont have any symptoms now. Should i stop medicine now? My ct report was fine.and doctor told me to isolate for 10 days. Can i touch my kids after 10 days or i have to wait for 14 days.can i do household things now? Pls help me as i dont want to go to hospital now or was I covid positive but why my report came negative.