So I had my period around the 16 and it usually last 4 to 5 days normal but it was only for maybe 2 1/2 well ever since then I've been having lower stomach pain and feeling sick and stomach buring and I feel pressure in my stomach like I'm bloated I still have 16 days before af shows up so what could it be I barley have had any kind of discharge since then as well just wanting some kinda insight what it could be