I'm 29, male. Last week I was having trouble breathing at night, congested sinuses, which led to post nasal drip, Sore thoat and full blown flu symptoms. I was bed ridden for a couple of days, had fevers, a lot of sniffling, insomnia, muscle pains and some stiffness, but no coughing. I took some Sudafed, Advil, the usual, and after a few days I started feeling better, the flu subsided, the sore throat went away, but a lingering Sinus infection remained.
Along with the sinus infection, my ears were now clogged, I was still having a lot of trouble sleeping, my head felt full, I felt mild dizziness, some confusion.

I went to the doc on Thursday, after much of the sore throat had gone away, he brushed my other symptoms aside after a quick inspection, told me I had sinusitis and to take some Mucinex.
Not satisfied, I went back in on Friday to see someone else. She was a lot more attentive, did report seeing a lot of fluid in the ears, no sign of ear infection, ran a few blood tests including for Lyme, all of which came back negative. the white blood cell count seemed on target, indicating an absence of bacterial infection. She said she believed I had a strong viral infection that was now subsiding, explaining why my normal cell count gave no sign of a viral infection either.

Because the symptoms persisted, she decided to prescribe Doxycycline yesterday, a course of antibiotics, just in case. I've been taking them.

Everyday I feel out of it, dizzy, a bit confused, my eye sight is a bit blurry from a distance, and I feel some pressure behind the eye. Occasionally I still have a fever with pressure in my forehead (and a bit behind my head, yesterday)

However, I did develop a very strange symptom over the last 4 days. I forgot to mention it to the doctor when we spoke yesterday, but my left shoulder started burning, as if I had a sunburn. Today I started feeling it a bit on my right shoulder. It comes and goes, and although it's soon to notice a pattern, it seems to come towards the latter part of my day.

I have no idea what that could be??? Does anybody know??
Are any of those symptoms normal for sinusitis with fluid in the middle ear? -The dizziness, feeling out of it, hard to focus, blurry vision...
How about this burning, any idea?? (it started before the antibiotics)

I've had a few sinus infections before, but none like this one.

Any help would be greatly appreciated, it's all really worrying me!!