Do you have arthritis? This swelling and tightness sounds like arthitis. The red spots could be as simple as something you touched or something that should be looked at by your doctor. Have them look at this when you have your hands checked for arthritis.
Have you ever seen a rheumatologist? If you haven't, I would schedule an appointment with one.
Are there any other symptoms you would like to add? If so, just send me a message.