When i try breathing exercises; inhale w/nose exhale w/mouth slowly using diaphragm my face and arms start tingling more and more.

You might be: hyperventilating which can cause paresthesias.

Slow down: The purpose of breathing exercises, at least for meditation, is to SLOW the breathing and not to breathe deeper. One good example is 4-7-8 breathing: in for a count of 4, hold breath for 7 and exhale slowly for count of 8 with tongue behind your front teeth to slow your exhale. Too fast/too deep> blow off too much CO2>tingling For a video of this type into search bar just: bit.ly/1uyQgg8

Hyperventilating: may be breathing to fast and hyperventilating which dereases co2 and causes the tinglimg'