Cyst and flu

[Jadenabeita]

Ive had a cyst in one of my armpits for about a week and 2 days. My cyst appeared on Sunday or saterday I'm not sure when and after 4 days that my cyst appeared I started feeling like I'm about to get the flu. On Thursday I was coughing, feeling a little bit of chills, and sweated a little at night. I first wasn't worried about my cyst because I had cysts appear on the same armpit, and same spot for almost 5 or 4 years, and they always disappeared on there own. I know that It did shrink a little because when first appeared it had something white in the middle like a pimple and it also was pretty big like 2 peas and a half. Now its smaller and no white thing in the middle of cyst but then it stopped shrinking. I'm really getting worried that it can be lymphatic cancer or what ever that cancer is called. I've had night sweat, chills, persistant cough, loss of appetite and dry mouth. My mom had the flu a awhile ago like a couple of weeks and had the same symptoms of me, and my sister been sweating at night too so I really dont know if it is the flu or so thing more serious. Plz reply fast I'm really scared :(
Thanks