I am a 21 year old varsity student. I have been sick for the past month one thing after the other. It started as flu, i went to the pharmacy got some meds after a week that stopped. Then my sinus's started acting up, got sinutab from the pharmacy, then i started feeling pains in my abdomin, sharp pains, after which i felt extremely bloated and uncomfortable. Recently i feel nauseas i've lost my appetite, i feel fatigued and i have a headache that starts right at the back of my neck, where my neck joins to my head and it pushes upwards. Please help me, what is wrong with me?