Post dive - stuffed up nose

[OE2X]

I've been noticing that after most of my dives with 21% O2 that my sinuses get very stuffed up. I start the dive with clear passages and have no problem equalizing, but within a half hour of surfacing I get all plugged up. The wife tells me that the night after diving I snore and have sleep apnea. Those symptoms are not normal. With EAN 32 the symptoms are lessened somewhat.
Does anyone else go through this? Should I be seeing a Dr about it?

Thanks