Amoxicillin and flu

Have had the flu for 6 days, taking 500 mg 3 times a day for accompanying bacterial infection on the chest. I had 40º temperature for the first four days felt awful due to that but now on reflection I believe the amoxicillin is causing mood problems; feeling furious about insignificant things, crying triggered by sad news stories (I am a man) waves of hopelessness and depression, today I sat in the kitchen and wept feeling pessimistic and overwhelmed by life.

The first 2 days that I felt ill I had no negative mood, just fever and headache, before I started taking the antibiotic. Also I think the first dose caused me to vomit.

I started question the effect 2-500mg twice daily was having on me after a stomach ache the last two days. Not putting two and two together until now, but isn't that over prescribing? I'm taking 2000mg a day all together! Well, today my lower abdomen starting with a shooting pain, I felt like I had gas and had to go to restroom. The pain got worse as I sat on toilet, not able to do anything. I soaked in hot tub as long as I could and went to lay on bed, trying not to move, after while I fell asleep. After I woke the pain in still there a little bit , but bearable. I noticed my left ovary in swollen and tender.

i feel like i have the flu (aches, chills, pains, fever,vomitting, upset stomach) but about 100 times more gloomy in my head and sleep barely feels comforting. this only happened after about 5 days on 2000mg for a nasty sinus infection.