Replying to What is up with my feet/boots? Help needed!

This may look like a boring wall of text, but if you could, please read it through, I really need some help!

So, I've been having a problem with my boots that started this year. You see, I've got this years Full Tilt Hotdoggers, and whenever I put them on and start skiing for a while without stopping they start to almost burn, but in a way that feels like they're falling asleep. It has lead me to believe that I'm losing circulation in my feet because my boots are buckled to tightly, but the problem there is that I have to make my boots so loose that it inhibits performance. I also think it may have to do with the running orthotics I put in my boots that I used when I over-stretched my achilles last spring because I thought it would be better than nothing. I also don't think it's because my feet are to wide, becuase I checked my last and it's easily under 100 and 98. I'm not sure what I need, is it heat-moldable inserts? Please help, this is making skiing so much less fun for me.

+++K for all help!

Thanks alot guys!