I had a sudden numbness and tingling in my left arm and leg any suggestions on what could be wrong with me?

Left sided numbness. These are symptoms of great concern. There are several possibilites one of which could be a warning of an impending stroke. You should call your doctor asap to report this and get seen for an examination to determine the cause. Do not delay this. If you suddenly worsen call 911. Alert your family that you are having trouble and do not be alone until you get medical help.
Continuous?off & on. If it is one time event and without any weakness compared to right side and none since then it is not serious. If recurrent or persistent, it may be due to pathology in right brain.

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I think I am having a panic attack/ after affect 3 hours or so. I had sudden numbness in left arm/tingling. Can talk fine, can raise arms. No weakness?

Panic attack. It sounds like a panic attack please sit down relax and take deep breath's and it should disappear. Read more...
Acute Anxiety. I feel empathy for your condition. Having sudden numbness in left arm/tingling is causing panic feeling in you. Panic attack is period of intense fear with at least 4 of the following symptoms: Palpitation, sensation of shortness of breath, feeling of choking, chest pain, feeling dizzy or faint, numbness or tingling, seating, fear of going crazy, fear of dying Go to ER, and see a Psychiatrist. Read more...