What is the differnce between arthitis and rhumatism I am in pain

What is the differnce between arthritis and rhumatism I am in Pain and have a lump

You have a lump where? How long have you been in pain?

**EDIT**

This link should be VERY helpful. It describes all forms of "rheumatism" as well as arthritis. I hope you find it helpful.

Rheumatism - Rheumatic Disease - Arthritis: Are They All the Same? (http://arthritis.about.com/od/diseasesandconditions/a/rheumatism.htm)