I just completed by certification a few days ago (I am still on vacation now). We did 4-5 dives to 35-40ft with no problem. On my first certified day out we went to near 60ft and I started to have terrible pain in what felt like my teeth, gums and the left side of my head. We where near done, so I stuck it out for about 5-10 minutes. The pain came and went in waves and was bad enough that I had been considering surfacing. Its now 2-days later and I can still feel a dull ache from that area. I'm now hesitant to dive because I don't know what to expect. I guess going out again and seeing how it goes is not a bad thing, I just hate to spend the money when I am all but expecting to be in pain again. I'm starting to think it was not a tooth squeze because it was constant and not on the ascent, could this be a sinus problem? Any suggestions on what I could do in the future?