Over the past months I had bloodwork, CT scans, ultrasound and a couple more things. They said they found nothing and the specialists who did the ultrasound said they were near enough normal size, its just because I'm very slim. However I'm still worried without a biospy that I could end up with something very bad? The lymph nodes are are in my neck, tiny ones in my groin and maybe one under my armpit (the specialist said there is just more blood flow under my armpit?).
Should I go back and request biopsy or am I being paranoid?