Baccy disapointments

Don't know if it is the current weather, my pipe hygiene or body chemistry, but lately, the last three-four weeks I haven't been able to enjoy a good bowl of smoke.
Nothing works.
I have tried a variety of blends from overtly sweet X-mas mixes to heavy Latakia blends such as GLP Abingdon but none seem to please my palate in the long run. First puffs are OK, mid bowl I start to get a strong burning sensation and I haven't been able to finish a bowl in weeks.
Yesterday I had a bit of luck with Balkan Sasieni of which I had ONE bowlful left in my sampler pack, but afterwards my gums were all "cottony" and I had to resort to ice cream to dampen the tingling sensation somewhat.
Bummer.