Its been a week after my period and im feeling more tired, nauseous in the mornings and after i eat lunch bloating and mild cramps. what could it be?

Stomach problem: If this was a normal period it is unlikely that your problem is gynecological.It is more likely gastrointestinal. If your period was not normal and you are having unprotected sex, it would be a good idea to check a pregnancy test. Otherwise, see your primary care doctor or an urgent care clinic to check for stomach and intestinal problems.Probiotics may help. Good luck. Hope you feel better fast