Welcome to the forum and thanks for posting about your experience with Raynaud’s.
The vast majority of people with Raynaud’s have primary Raynaud’s with no known cause. It is estimated that 10 percent of people with Raynaud’s will develop an underlying disease such as scleroderma, lupus or RA. No one can say whether your Raynaud’s will remain primary but the odds are certainly in your favor. Any new symptoms should be checked out by your doctor since it can take many years before blood work shows a disease is present.