My Husband Is 33, Had His Gallbladder Out In November

My husband is 33, had his Gallbladder out in November 2015, In December 2015 My groin swelled and I went to 2 doctors, they said they believed I had an infection in my Lymph node. I have been on 5 rounds of antibiotics, It has spread. I now have swollen lymph nodes on my neck, wrist, and both sides of my groin. I am terrified that it could be cancer.