cold symptons and chest pain

I started noticing cold symptoms a little more than a week ago...the first 3 days were very mild and the 4th day hit me hard... i had a slight fever/coughing/sneezing/runny nose/headache. on the 5th day i began to feel better but the symptoms were still present... since then (on about the 7th or 8th day now) the sneezing has stopped. i was having extreme headache from sinus congestion 2 days ago... but it has stopped... however i still have a runny nose and im coughing up flem... this whole time i have been taking some dayquil/nyquil and mucinex dm. i thought i was getting over it buuut...

i have been having night sweats for about the past two days (which ive never had before) nonetheless. i returned to my normal activites yesterday, feeling good (well maybe just ok) in the morning. I felt i had my strength back... during the day i started feeling extrmeely weak... also the past 2 days i have had almost no appetite... i feel hunger, but my appetite is gone and i cant eat... last night i started having chest pains and at one time they were so bad i had to stop what i was doing... it hurt to breathe and they were constant for about 2 hours before they stopped... this morning i woke up a sweaty mess, and still slight chest pain but not unbearable like last night... now it just feels like there is pressure in my lungs or something idk... but when i press on my rib cage it hurts...

i dont know if this is a result from it but i have also lost some weight recently... not a drastic amount but i had to poke an extra hole in my belt the other day cause it was too big... so i can tell...

i dont have health insurance and im kinda starting to freak out do i need to go to the emergency room or what...