is it normal baru 12-13 weeks selalu rasa tak larat?

Normal sis.. Sy first semester mmg rs bdn cpt letih, pastu sakit kat bwh perut, tdo mlm pun xselesa... Tp dh masuk week 15, dh rs lg better.. Klu tak hmpir stiap tgkt naik tangga ke ofis tu sy benti.. Penat.. Now, much better naik smpi tgkt tiga...