I always feel like a lump is in my throat and throat tightness it doesnt get better or worse and sometimes it scares me and i think im having allergic reactions to everything though ive had no history of allergies what could this possibly be?

Doctor can examine: People having anxiety attacks or panic attacks get that "lump in the throat" as part of the attacks, and thus should not try to eat at that time. If there remains a "lump" sensation without anxiety symptoms, the lump could be from something else. Other reasons for "lump in the throat" sensations include a swollen tonsil, enlarged lymph node, tumor, abscess, esophagus problem, etc...