Sounds like you got a good dose of needed alkaline minerals...
Alkaline minerals are in a extreme shortage in nearly ALL of us. Without them the body can not clean up all the toxins we are loaded with ---toxins which begin all kinds of breakdown in our systems (extra anxiety being one of them leading up to cancers). Cancer can be seen as out bodies failure to clean out dead cells and low oxygen levels, both issues which alkaline minerals help correct. Edema is all but cured with a alkaline diet....
I encourage people here to spend some time at the Alkaline and Raw foods forum's even if they seem totally disconnected from ones pressing issues. Especially (but not lastly) if you have any high blood pressure problems ---look to alkaline..... This subject touches on almost every health issue including emotional.