I've developed raynaud's. Also have livedo reticularis all over my body which seems to be getting worse. I know these can both be primary conditions, but should I be worried about an underlying issue?

Systemic disease. Yes, see a rheumatologist for a complete workup.
Rheumatologist. The combination of raynaud"s syndrome and/or disease and livedo reticularis is suspicious of a collagen disease like lupus. If you haven't already done so, i recommend an evaluation by a rheumatologist.
See a Rheumatologist. This is a uncommon condition which should be handled by a specialist who deals with collagen-vascular conditions . There can be an underlying cause which requires detailed investigations to rule it out. That is where your rheumatologist/consultant can make an important contribution to your welfare.