I have a complicated question about my health?

I'm 19 female.I'm not trying to use this forum as an alternate to seeing a doctor, since I have already saw one. All that he really did was give me antibiotics and tell me if it doesn't get better within seven days to come back in. (I saw the doctor on the 2ed of Jan). This all started the day before Christmas Eve. I was getting headaches throughout the day and my muscles were sore as if I had been doing PT for a long range of time. I had never had my muscles ache that bad before for no apparent reason so I struggled through work, and called out the next day. I thought I may have just been having a 24 hour bug since there was one going around. But it didn’t get better it actually got progressing worse. Extreme headaches, muscle pains, congestion, hard time sleeping and staying asleep and even woken up to fevers and throwing up. Finally after I called out of work for a week I decided to go to the doctor. Now the antibiotics seem to be helping everything else, but something else is happening now too. A mive sore throat to the point where it feels like needles when I swallow. Both of my main lymph nodes on my neck are swallowing and feel like Frankenstein’s bolts. Mind you I get very sick during the winter and this is the 4th year for me that I have had some type of illness. I do nothing out of the ordinary that would subject me to viruses and I am always the one bundled up more when I have to go outside. I'm beginning to get worried about my health since the winter literally scares me now. I do not want to go outside for anything considering I get hit with something every time. I just do not understand it because this isn't happening to anyone else doing the same things as me. I guess I really don't have a real question, just more looking for advice on what steps to take or what path to turn to. What has worked for you? Thank you for anyone who helps.