I have been on Doxycycline Hyclate 3 days for sinus infection. La...

I have been on Doxycycline Hyclate 3 days for sinus infection. Last night when I took the pill I noticed that it seemed like the pill was stuck in my throat. I had a little heartburn also. I took another pill about 2 hours ago & had the same stuck in my throat feel. I now have horrible chest pains, heartburn & rapid heartbeat. Something told me to google it & see if anyone else had the same reaction. I'm so glad I did. I won't be taking anymore of these. I'm just waiting now for it to wear off.