What would cause my fingers to freeze up and i have to be massaged them to get working again. i hear a popping sound when i get them working?

Please see your GP: Fingers "freezing up" can be a circulation issue, particularly if the skin colour changes, a joint issue if your knuckles and finger joints appear swollen and stiff generally, or a nerve issue especially if there is associated numbness, weakness or pins and needles. You need to have a face to face consultation with your GP in the first instance to try and work out the cause

This could be severa: Things possible with finger "freeze up" which could be tendon issues with trigger finger, nerve entrapment with carpal tunnel, guyon canal or cubical tunnel or arthritis. Suggest to get it check out by PCP or rheumatologist, or sports medicine.

?Trigger finger: When a finger locks in place and requires massage to get them mobile again, the most likely diagnosis is "trigger finger", which occurs in about 2-3% of people during their lifetime. There are some possible associations such as gout, diabetes, thyroid problems or rheumatoid arthritis, so doctor review is recommended. If the problem is severe, steroid injections may help.

Check with doctor: It might be just cold weather However, I would do a check with the doctor to make sure it is not related to rheumatological problem (joints and soft tissue)