I Was Taking My Antibotic DOXYCYCYCLINE HYCLATE. I Was Told

i was taking my antibotic DOXYCYCYCLINE HYCLATE. I was told to make sure and take it after i ate. I took the pill and it felt like it was turning side ways i drank more water as it felt like it was going down, i didnt get choked, but it felt like the pilled move to my right side and lodge under my rib cage. even tho i didnt get choked it felt like it was lodge under rib cage and it hurt, i drank more and ate a piece of bread thinking it might help, i stayed sitting up for along while, my side still hurt, i finally laid down and got some relief from the pain, i woke up this morning, the pain is still there under my rib cage, this was a capsule i thought it would of disolved. I am just concern that the pain is there. what should i do?