I ran into the same problem when I was scuba diving. I was holding my nose very tightly and blowing extremly hard. It only made things worse for me
. No one ever really told me to do otherwise and I took my scuba course like 8 years ago when I was 12.
I cannot wait to test out the proper technique of letting some air out (when using a mask, I think the reason for this is to equlize the mask as well) then slowly breathing out of your nose.
