I had cereal with almonds in it and almond milk and after a couple of hours my throat began to itch and kind of closed in. could i be allergic?

YES.: This is concerning. Anytime the airway is compromised, you could be in trouble - and allergic symptoms may worsen with repeated exposures to an allergen. I would recommend that you discuss this with your doctor. S/he may recommend allergy testing to identify what - if anything - you are allergic to. In the meantime, do not re-expose yourself to almonds or other nuts from trees. Be careful.