Swollen lymph node on neck , hot flashes , menopause

I have had a swollen lymph node on right side of neck for a year. Feel weak and tired alot, having night sweats but it is hard to distinguish if it is not hot flashes, I have them anyways because I am going through menopause. My voice is hoarse at times and I can not hear out of my ear due to the largeness of the node. The nodes have enlarged and the doctor said there is an unusual amount of cervical nodes also. I am worried, should I really be concerned? My doctor said it could be at least 6 weeks before i can get in to see a surgeon, will going to the er help.