I found a swollen lymph node under my armpit, it's not painful unless I drink alcohol. My skin is itchier, I'm so tired all the time. I have a weird?

See doctor. You need to be seen by your pcp for exam and evaluation of ?lymph node, ?dry itchy skin and fatigue. Alcohol numbs pain which could explain above. Be honest about all meds you take (prescribed/OTC, including any birth control), alcohol/drug/tobacco use and sexual activity. Hope this helps.