Hello, I'm An Active Female Age 30 With A Reoccuring

Hello,

I'm an active female age 30 with a reoccuring tonsil infection.
Nov 2nd (around Monday) I started feeling a slight sore throat via my right tonsil. By Thursday, I had a fever and more pain. Next day fever went to 102. My tonsils were both swollen with white pus. My right ear hurt and my whole body ached/joint pain. I went to an urgent care doctor Saturday morning. He did a visual exam saying it must be a bacteria and prescribed antibiotics (3 times daily for 10 days). That night/next day my pain was almost unbearable even with ibuprofen. I took too much and started getting acid reflux. I started excessive drooling for about 24 hours.
The antibiotics started making a difference after 3 days. By the 8th day I felt much better. I finished my antibiotics and the next day went to the gym. That night I started having a sore throat on the left side. Within 24 hours I had a fever, tonsil swollen/pus, and body pain. I went to a different urgent care after 2 days. The doctor did a rapid strep test which was negative. He did a visual exam saying it was probably an anaerobic bacteria. He prescribed a stronger antibiotic (4 times daily 10 days) and vicodin for the pain.
This time I felt better but my body felt more fatigued. A day after I finished my 10 day antibitoics I found out my cousin was in the hospital. He died 4 days later, so I was extremely emotionally stressed. A week later I pretty bad food poisoning. That lasted for 5 days. I figured this was from the antibiotics wiping my natural bacteria out.
Dec 19th I woke up with a sore throat concentrated on the left side. That night I had pus on my tonsils and a fever. Next day it wasnt as bad but since then I've had painful tonsils mainly the left. The tonsil is very red and veiny. I got health insurance and saw a PCP doctor on the 23rd. She did a throat culture and blood tests. The culture came back negative. She refered me to an ENT but that appointment isn't until Jan 12th. She said to go to the E.R. if my symptoms get worse and I should have the first infection.
Its now Jan 4th. Ive been taking ibuprofen abd tynol for the pain. Im unable to exercise much or I become more sick the next day. I also can't do too much with friends or over exert myself without more problems. I'm very frustrated since I'm big on exercise. My doctor doesn't want to diagnose or prescribe anything until we know better what it is which I agree BUT I really wish I had any idea what it could be! Someone freaked me out about catching a STI. I had an intimate encounter on Nov 1st with a woman that involved kissing and me giving oral sex. I read however that it is very rare to get STDs this way. Also, I would be experiencing symptoms within 24 hours which I didn't find many matches for symptoms appearing so quickly. Is it possible with these symptoms to have had obtained an STI or bacterial infection from vaginal fluid? I get sick fairly easily so I didn't think much on it the first bout of infection, but now its been 2 months and I'm still waiting to get better.
Any insight would be great! Thank you!