help advice for pain relief, cant stop stressing.

Less than one minute read time.
i have sclc, they said it has gone to my glands above the kidneys, and is near my heart, i feel i am being lied to as i am a very stressful person, i cannot sleep, i get about 4 hrs in 24, i have severe pain in my chest, and the painkillers do not work, i take codymol, i am crying all day i cannot settle and constantly stressed, i have anti biotics which i have to start taking in 3 days however i have started today, i am afraid of chest infection, i started chemo last week, tues, weds thurs, please help the pain is too much, i cant sit stand or lie down with it, what painkillers should i be taking? they told me i have approx 2yr , yet i feel it is sooner, please help me i cannot take it anymore, i am so scared. i feel they are all lying to me.
Anonymous