I've been taking Doxycycline for two days now. I have a severs ca...

I've been taking Doxycycline for two days now. I have a severs case of insomnia. I have not slept in over 36 hours, which is very unusual for me. I am experiencing shortness of breath, extremely exhausted (but can't sleep), nausea, dizziness, feeling of something in my throat, and weird weird moods (getting mad for no reason, which isn't usually me and people are noticing that something is different). I'm supposed to be taking it for another 5 days for an infection. Any advice on what I should do? This whole no sleeping thing just isn't working for me.