Welcome to the forum, emer73.
It can take anywhere from 10-15 years, if at all, for an underlying disorder to show symptoms along with the Raynaud’s. So, it’s possible that you might have something else going on that the Raynaud’s symptoms are accompanying. And, tests can return negative but that shouldn’t rule out the possibility. Also, you may actually have primary Raynaud’s and your other symptoms aren’t related to a connective tissue disorder that would be associated but, possibly to some other ailment This will be a process that you and your rheumatologist, or primary care doctor if you prefer, will have to keep tabs on and go from there.
I hope you have a look around our site and are able to find some more information that could be helpful to you.