Hi im 25 years old and having chest pressure and body aches all over. Mainly in my back under my shoulder blades, clavicle pain, arm and leg pain, lymph node pain in my groin and neck. Lymph nodes are not swollen but since im skinny i can feel them fairly easy. About a week ago i started to have all these symptoms out of nowhere. It feels like i have something stuck in my throat while a elephant is sitting on my chest. I've been having a harder time catching my breathe, and have noticed my eyes will get heavy as if im sleepy mid day. I went to the ER the other day, I had a EKG, blood work, and chest xray done. All came back normal except for my platelets, the doctor said the average is at 250 for my age and im at a 374. He mentioned that i could have a blood clot in my chest but to just keep a eye on everything. This morning i woke up and I lost 4 pounds overnight. I am a heavy marijuana smoker but haven't smoked at all for a full week. They think its just my anxiety causing all of this, but i can occupy myself with games and still feel the pain, even when its not a thought in my mind. He offered to do a ct scan but mentioned its pricey and he doesnt see me needing it. Is there anybody who can maybe comfort me, just tell me im overthinking it. Im scared it maybe a cancer of some sort. Just need some assurance.