Small lump behind ear, neck sore on that side, throats sore, been having a bit of hot and cold sweats. Don’t have a fever, don’t feel awful just not the best. Is this a cold? Is the lump a lymph node?

Sounds like. "EXTERNAL OTITIS" , in inflammation of the outer ear canal (Sometimes called "Swimmer's Ear". Antibiotics both local (in the canal itself" and systemic (by mouth) may be indicated!
Hope this is helpful!
Dr Z.