I Have Been Experiencing Spells Where I Can't Breathe. I

I have been experiencing spells where I can't breathe. I gasp but get very little air and as long as I relax and take the little gasps it passes after a few minutes. I also feel like certain dry foods now seem to catch in my throat unless I drink something first. When I put my chin to my chest I can feel the air getting cut off more than usual in the past. I would like to know who would be best to look at this situation? Would a med center be ok?