Had vomiting low grade fever loose motion for two days Now after medication (ciplox tz , entergermina, lipovon 20, ORS , vit A to Z) no more symptoms are there only weakness and little pain in hand , back is there. But suddenly yesterday night when i checked oxymeter oxygen is 89. so done breathing exercise after that it is 95 . but no breathing problem symptoms no pain in chest areas heart beat is also normal. nothing symptoms is there. suddenly what happened? im scared. I thought I recovered but suddenly why oxygen is low without any symptoms. is it because of diarrhoea? plz help me out. and i drinking plenty of water also.