Dealing with Lingering Stomach Pain for Months

So my stomach pain seems to have moved on to the middle of my stomach from the left side it started left side ab then went onto my back left side now I have a pain in the middle is this a stomach virus I’m not sure but it’s been two months of pain radiating . The pain has eased off but it’s just lingering and my nausea im noticing has gone away for the most part I’m just wondering when I will fell 100% again this is so annoying also the doctors said they found slightly swollen lymph nodes and just said it’s a virus nothing to worry about let it takes its course I never knew the course was going to be half the dam year 😞