I'm a gay male. A sexual partner of mine inserted his penis inside my anus completely without any protection and I pushed him out after couple of thrusts. This happened on November 15th 2015. 10 days post that I had diarrhoea and feverish feeling. I took a paracetamol and the fever went away within couple of hours. I visited a doctor for diarrhoea who attributed it to the seasonal rains and he gave an injection after which diarrhoea stopped. All this happened within a day or two. After a week or so, I started having insomnia(I wake up after sleeping well for 4-5 hours and then have bad sleep after that). On December 22nd 2015, I had a sore throat and acid reflux. From then on, I have had cold and wet cough with running nose and I've had difficulty swallowing on occasions. I also had acid reflux 3 more times. For the past 2 days, the left side of my neck is a little tender. Also, I'm having pimples(which are painful when pressed and have generally disappeared after 4-5 days) and brown spots(not painful and haven't disappeared) on my skin for the past month. I took a duo test just before the encounter and it was non-reactive. I'm planning to take duo test on 4th of January 2016. What are my risks?