I'm 24-- should i be concerned with slight tingling in my hands and feet?

Many causes: Paresthesias can be due to many reasons including diabetic neuropathy, nerve compression, systemic disease, vitamin deficiency, and alcoholism. If the tingling becomes more bothersome or you experience new symptoms, see your primary care physician. Take a detailed account of these episodes (timing, duration, associated factors, etc). http://www.nlm.nih.gov/medlineplus/ency/article/003206.htm