The swelling could be a Ganglion or Lipoma. Nothing to worry about the selling unless it grows too big and cause constant pain.
Right sided pain and numbess at this age could be because of VitB12 deficiency. Just take Methycobal (
B12) supplements. If symptoms worsen consult neuro specialist
Next Steps
Try Cap. Rexite Plus , once daily for for 2 weeks, let me know if you are better. contact me if symptoms persists.