What Causes Feeling Of Something Stuck In Throat?

I feel like something is stuck in my throat. It comes and goes. Had a cold mid November. Was snorting all the time to get rid of phlem. Then some heart burn and maybe gerd in December around the holidays. Still feel this moving thing in my throat. Went to dr. Got nasal spray for post nasal drip. Been 3 weeks. Still happening. Better when I eat or drink. No problem breathing or swallowing. No pain. Maybe a lilies tiny irritation but no pain just annoying.