hi, i'm a 29yo male from australia & for the past 2 month i've been dealing with sickness on & off. i've had colds & flus, fevers, coughing.

now for the last 4 weeks i've been struggling with pain at the edge of my chest near my left armpit and pain in my neck & jaw and near my ears too accompanied by nausea and fatigue.

I've seen a doctor, he thought it was a virus & gave me a course of antibiotics, which haven't helped.

It seams like when the pain flares up, i get nauseous and fatigued. sometimes i get tired for no reason at all.

i've also had pains in my chest and back, but they are not as bad now.
what could this be? i've missed so much work because of it.

please help!