Fizzy symptoms and conditions

I was prescribed Doxycycline to treat PID - Pelvic Inflammatory Disease - 100mg once daily.

After 5 days, my symptoms were not impoving. I had been bleeding and cramping for 11 days, so I phoned my Doctor back with my complaints and he prescribed an additional antibiotoc - Amoxyllin.

The Doxycycline side effects I've noticed are weird.

First side effect was a tingling in my lower lip, like a fizzy feeling. This wasn't unpleasant, just very strange.
I have also been feeling groggy and lethargic, and am feeling depressed. I'm really teary, my mood is low and have little energy.

My throat feels like it's a bit blocked also.

I have another week to go until I'm finished them, I know I must complete the course, and I'm counting down the days.

Doxycycline is not my friend. :(

I have been on yasmin for nearly year with a break of 2 months. I was on spironolactone for a year but my periods became erratic so I went on yasmin to try and control my acne. In the last 6 months I have started to become bloated and get stomach pain and be really gassy.This is quite constant but especially after I eat. I have a really good diet, no wheat,dairy or sugar or fizzy dronks, but still I experience pain. My skin is clearer than when I am not on it but i don't think I want to be in constant pain.
I also feel lethargic and get tired easily and have put on a bit of weight, but that's quite normal as I have PCOS, so my weight fluctuates constantly.