Any advice appreciated!

I have a sudden  feeling come over me where I feel hot ,just in my head and my face gets all flushed. I have a stomach ache and I can't go to the bathroom.  I then start to sweat excessively and begin to vomit. After I start to throw up I begin to go to the bathroom and my face turns sheet white.  I have had blood tests, colonoscopies, I have even been checked for carcinoid tumor--everything comes out normal.  Does anyone have any answers for me.  This comes on me all of the sudden.    Thanks!  joy6459

[Caryopteris]

Get tested for food allergies, including Celiac disease.  Try taking Miralax.  If taking 1 1/2 capfuls a day doesn't do the trick, you can take it twice a day.  

A very potent oral medication for constipation is Amitiza, but it is very, very expensive.