Bath salts are cosmetics and they can not cause any pain.You must be having pelvic inflammatory disease
or dysmenorrhoea.You said you are having period 5 times in 2 months , is it heavy ? Take some antispasmodics like meftal
-spas tablet and go for an ultrasound
, it can be appendicular or urinary colic
also.Get your blood counts done.
You have mentioned ' withdrawal' , please make it clear , do you mean withdrawal bleeding ?
awaiting your reply