Hi. I've Been Struggling With Myoplasmic Pneumonia For Two Months

Hi. I've been struggling with myoplasmic pneumonia for two months now. Given antibiotic shots for two weeks. Had to stop due to side effects. In a week I was worse. Now I've been On doxycycline for 3 weeks. Feel like I'm just at the bottom of a mountain looking up. However still Feeling horrible. My days are so up and down. Exhausted, Extreme sore throat and chest, coughing spells, at times like I cann't breath, headaches, feels like infection my be going up into both ears, hot then cold, feel sick to stomach whenever I drink or eat anything, acknee all over my body and never had bad acknee before. Worse on upper thys, butt. Any suggestions.