Long story short - 2 weeks ago I played tennis while I was sick (flu or something like this). It was a very cold evening and I've had short sleeves. We played for about 2 hours, the next day I woke up with hurting neck, but went to play some more. It was also cold. The day after this I couldn't turn my head in either way- th pain was on BOTH sides of the neck, basically I couldn't move it at all. The pain was really killing me. The whole back of my head and neck was really sore. So I took some pills and it got alot better, but when I stopped the meds, it came back, it wasn't as strong as it was before, but still, it was annoying and exhausting, especially in work.
Today is two weeks since my neck hurts, I stopped trainings and I plan to rest a little bit. I've got some painkillers too. Do you think it's something really serious and I should go to see a doctor or maybe it's just a kinked neck beacuse I was sick and played in a bad weather and it will get better soon? What should I do?