Doxycycline Hyclate and loss of apetite

Hi, my boyfriend and I are travelling Laos and a few other countries with Malaria risk and have been taking Doxycycline for about 1 week. we are both feeling not too well. Really tierd, total loss of apetite and I am experiencing blood in my stools. I think we are going to keep taking this for another week and if things dont get better we will stop. Its spoiling our time away! LA

I am taking Doxy for mild acne. I have been taking it for TWO DAYS. I was taking it before bed, now i am experiencing chest pains the spread up to my esophagus and mouth. No nausea, but loss of apetite. The chest pains are frequent bursts of pain varying in severity. Has anyone else experienced such?

NAUSEA AND LOSS OF APETITE, PLUS DROWSINESS AND DIZZINESS ALSO COLD SWEATS ON ONE SIDE TAKING IT FOR SINUS INFECTION WAS SICK AN HOUR AFTER TAKING IT ONE DAY VERY IRRATABLE AND LETHARGIC.

NAUSEA AND LOSS OF APETITE, PLUS DROWSINESS AND DIZINESS