Hi, I have a non painful pea size lump under my chin and on my neck behind my ear, both have reduced in size since I noticed them. I also have noticed a swelling in my left collarbone area, but only when I raise my arm, this feels like soft tissue. I also don t drink much water and have woken with lower back discomfort and dark urine on a few accessions. I have started drinking more that might be reason the lumps in my neck/chin have reduced??? Any information/advise would be welcome.