Please help haha

Last night i was with a bunch of friends at a party. After a while everyone started to go off to other rooms to sleep and I was left with my boyfriend of two years . We have been sexually actively before but the furthest we’ve gone is oral and that’s it . We haven’t done anything though like that in a really long time tho so I haven’t felt the feeling of something like that in a long time. He fingered me and what not but after that that I began to be really sore. A few hours after that I started get cramp like feelings and feelings of gas being trapped in my stomach? I have had feelings like this before but it still stresses me out. It might just me overthinking that’s making it worse but I am having very bad anxiety ofer this. Is it normal!? Please help!