Early Pregnancy Trapped Wind

Ok this may be TMI just incase you don’t want to read..

I found out recently that I’m almost 6 weeks pregnant and tonight for the first time I have such awful tummy pain that feels as though I need to pass wind but can’t get anything out. I went to the loo and tried for a while to see if anything would happen & nothing!

Lying in bed feeling sorry for myself and weirdly now have these cold body shakes?! I had a BBQ today so am wondering whether it was something wrong with the food however it really feels more like gas than anything.

Has anyone has this in early pregnancy/ got any tips?