Back pain

Abbie
So im only 11 weeks and I've been getting back pain after I eat. Its in my upper back on my right side close to the spine. Its the most painful thing in the world (and I'm only slightly exaggerating). My husband thinks it gas but I've loomed that up on the internet and I haven't been able to find anything. I have an appointment next week so I will ask then but in the meantime I was wondering if this has happened to anyone else and how to make it go away!!!