Is this serious? Please help.

Maybe a few days before my period I was having slight cramps that I could brush off but today I started my period and maybe as soon as I did I smoked a blunt. Shortly after I smoked I began to feel cramps and with time it got worse so I fell asleep hoping that by the time I woke up they would be gone but I was awoken by my cramps bc they felt really bad. There isn’t much bleeding my flow is about medium so I got up to change my pad when I got up I felt like throwing up bc of how bad my stomach hurt so I just put a bag of hot water on my stomach and it went away but it has came back the cramping isn’t as bad but it still hurts a bit and technically I’ve been cramping almost all day. Is this normal?