I have suffered with the same issue as long as I can remember (I'm 46). Every doctor I have talked to about it is clueless. I have been able to determine some of the factors that can cause it to flare:
Alcohol
Caffine
Stress
Anxiety
Several people suffer from it, but nobody knows what causes it. If I take Zanax it helps to ease it, which makes me think it is more anxiety and stress than anything else.
Because of it, I can not wear anything tight around my neck. Ties, tees, turtlenecks
I know this isn't much help, but hopefully just knowing other people suffer the same thing is of some comfort to you.
Do you think it could be allergy (to food or polens, or animal's hair, or some chemicals - lacquer on new furniture and such)?
Most common food allergies are to fish, shellfish, peanuts and tree nuts. (in children to milk, soy eggs, and wheat). Symptoms (vomiting, diarrhea, skin rash/itching, difficult breathing, face flushing)
appear shortly after eating that food.
Diagnosis of allergy is made by skin test (suspicious substances are tried).