Jaw pain, whiplash, anxiety, arm numbness, muscle weakness, shortness of breath, feel really weak/fatigued, lack of motivation, feel faint, pleasehelp?

Wow, too complex. Mentioning whiplash suggests u had an injury? Whiplash is graded based upon the extent of "systemic symptoms". These (dizzy/faint, nausea, headaches, etc) result from unbalance sympathetic nervous system response to the "shock" of the injury. More serious injuries need to be ruled out however.
You should be . Evaluated by a doctor not typing here....Were you in a car accident? Why do you have whiplash?