Severe Gas and stomach trouble 4 weeks pp

Arianne • 31 years old, happily married since July 2013. Mama to Peter 4/11/16 Linnea 9/23/18 and Ivy 5/7/2021 Spina Bifida mom. PCOS+Endo.
My stomach is so upset whenever I eat anything and has since 2 weeks pp! Even drinking water! It is making it difficult to wake up during the night to feed my son. Anyone gone through something similar? This hurts :(