Advice please TMI

Sorry for tmi but I am 6dpo and on and off have experienced cramping and mild diarrhoea which in itself is unusual but tonight I have extremely bad cramping (lower abdomen) abdomen feels kind of swollen if that makes sense, with more diarrhoea 😩😩 I never get this not even after ovulation. Could this be a sign of implantation? I feel so off don’t know what to do with myself feel hot, bad cramping, felt dizzy earlier etc. Anyone else experienced this? Have also felt absolutely exhausted all week