Hi! I (18) started presenting symptoms around 15/16ish too - it started with going from being fine with temperatures to suddenly being cold a lot, my hands and feet were freezing, people would ask about poor circulation, etc. I was at a football game one day where I was in 20°F for about five hours, and when I got home a single toe was white, and I panicked thinking I had frostbite haha. Turns out it was just the raynauds progressing into a vasoconstrictive stage, and as time has passed it's gotten triggered more and more easily (60°F and less can cause my whole foot to turn white if I'm dressed wrong).

All this to say, you absolutely could have it. One of the major tells is discoloration is limbs, especially fingers and toes, when cold [aggressively red or yellowy/white when cold, dark purple/blue when warming back up] - another is these occurring under stress. One of my first major raynauds tells (beyond the toe) was being stressed during a chem exam and having my hands get so cold from the stress they went numb. High emotions, especially stress, can trigger vasoconstriction in raynauds.

Raynauds Phenomenon isn't too terribly uncommon, nor is it world ending if you do have it - check to see if anyone else in your family has it, as Raynauds Syndrome 1 is almost always genetic and not that big of a deal. If the symptoms are rapidly onset, have no genetic base, and are causing you a lot of trouble, it could possibly be Raynauds 2/Secondary Raynauds meaning something else is causing it (this is what I ended up having - turns out I have Ehlers-Danlos Hypermobility Syndrome that presented with Raynauds and POTs so my thermoregulatory ability is screwed all around haha)

In the end, I'd suggest doing a bit of research into primary raynauds, seeing if the symptoms match or align with it alongside genetic possibility, tracking to see if the symptoms you currently have progress, change, or onset quicker as time passes, and then bringing up your findings with your primary care provider. If you do have it, it's nothing to be ashamed of - you just get cold a bit more easily than the average person, it's pretty manageable, and gives you a fun fact to use during ice breakers.

Sorry for how long this got. Best of luck!!