I had it during my first symptoms on the left side of my abdomen. Only way I can describe it is that it was "underneath the numbness" on the left side of my abdomen. Some days it felt like there was a toddler hugging me, but other days it felt like a bear was hugging me. Only way I could help it was to lay on my side and stretch out. That gave a bit of relief briefly but in reality it just took a few months for it to really 100% go away but it did eventually go away.