Ulcerative colitis throat and gum problems?

Ive been diagnosed with uc for 16 months now and at first they gave me an endoscopy and said it was not crohns disease. Ive recently had a colonoscopy saying im healed for now.

I keep getting swollen glands in my neck and ulcers all over my mouth and tongue, dry and sore eyes and since the beginning ive always felt as though im going to throw up when i need the toilet.

From looking at other websites a lot of these seem to be symptoms of crohns.

Can someone give me some ways to check or be sure or help me understand if uc can also give these symptoms?!

What would the ulcer swabs show? Yeah the endoscopy was from the mouth to stomach

Uc was through the whole large colon i think, basically until the end of where you class it to be uc