Sometimes, I feel like I can't swallow - like a panic attack sort of feeling. I don't know if your son is experiencing a 'panic attack' sort of response, where he feels like he must swallow immediately. Or if he's just a super-hungry teenager....either way, I would also recommend talking to his doctor. I'm not aware of this being a Crohn's type of symptom, but maybe it is.
DX: mild to moderate Crohn's for 34 years
Additional benefits: chronic anemia, B12 deficient, peripheral neuropathy, facial mylagsia, joint pain, underactive thyriod
Current meds: Colozal, Nexium, Entocort, Flagyl, steriod cream, monthly B12 injections, Neurontin, Synthroid, Effexor ER, pain meds as needed