I thought i was going nuts in a matter of days. i figured i was just stressed out from work and how my lifestyles changed throughout this new year, but i'm only 18 life shouldn't be this way. I Started taking Doxy on March 4th for my acne, and for the first week i was fine, no side affects except for the feeling like there was something in my throat. but then as I continued into the second week, i would wake up fatigued and dehydrated; which stayed with me throughout the day. I started getting neck aches and in the lower back, all on top of a migraine that would come and go. All day i'd feel dizzy, fatigued, tired, disoriented, and thoughts that i'll never be healthy and i'd always feel this way would constantly go through my mind. I even went to my family physician because I thought had a pinched nerve in my neck which was giving me all this pain in my neck and the headaches. my doctor confirmed that i didn't have a pinched nerve so i continued to tell myself that im alright.... right? no news is good news.....right? It wasn't until today(march 17th) that i considered doxycycline hyclate to be a possible culprit. I realized something was very wrong when i couldn't even tell my dad what i was experiencing w/o getting emotional... for NO REASON!!!!! my dad looked up this "Doxy" and we stumbled across this helpful site filled with blogs about people taking the exact same medication with the exact same side affects. As much as i'd love to have a clear face, it's not worth messing up your mind. i took my morning dose today, but will not continue to take anymore of this "Doxycycling Hyclate" hopefully, with time, my mindset will return back to it's normal functioning. just THINK POSITIVE!!!!!!!