Suggestions for a sensitivity toothpaste that won't burn my mouth and affect my sense of taste?

Hello. I have been trying different toothpastes in an effort to find a hot/cold sensitivity toothpaste that won't burn the insides of my mouth and/or cause a loss in my sense of taste. I know my morning coffee used to taste delicious, but now it tastes like hot, slightly bitter water.

I've found that the potassium nitrate stuff works just fine for my hot/cold sensitivity. Stuff I've tried that burns:

• Sensodyne whitening
• Sensodyne fresh mint
• Sensodyne full protection
• generic Sensodyne (Good Sense w/whitening)
• Crest Pro Health
• Listerine Total Care mouthwash burned worse than all of them.

Stuff that doesn't burn:

• Biotene doesn't burn, but it doesn't have a hot/cold sensitivity additive.
• ACT flouride mouthwash doesn't burn either. Just an observation.

Does anyone have any suggestions or observations that could help me find a toothpaste that doesn't burn my mouth? Especially a hot/cold sensitivity one? Thanks in advance.