Histimine.... old news. Your body tries to rid itstelf of impurities, sweat, tears, bad cardio, (lungs) etc. Hey, your are overloading someithing the body wants to rid itself of. These are the only ways...for it to purge.
Go to lef.org, get a cbc done, 35 bucks and you will know what to do.
Peace,
PK