Something strange

Guys, yesterday I took my liothyronine pill (t3). I take it whenever my energy feels low in the afternoon. My throat got sore within an hour. It did not feel like a regular sore throat but I felt out of it with a headache and like my thyroid was swollen. It kinda freaked me out. I took an ibuprofen and hoped for the best. Today it’s no longer swollen. What the heck just happened? I’m due to have some labs done