Bottom of my throat feels tight. almost between my collar bones. if i press between them, it's almost more comfortable to breathe..?

Throat tightness: Check for post nasal drip , reflux. and h pylori at the same time .meanwhile can try maalox or OTC ranitidine before bed and or zyrtec and see if helps. Also check thyroid and thyroid ultrasound for nodules/goiter.rarely could be dysfunctional esophageal contractions( achalsia) or cricopharyngeal dysfucntion.(difficulty swallowing?) follow up with doctor/ urgent care