I pulled a muscle last week and the pain has gotten extremely worse and it not getting better i constantly have a throbbing sharp pain and i'm struggling to sleep or work?

Need Examination.: Since your symptoms are increasing, I would suggest that this should be evaluated by your primary care physician. Recommendations for lab or radiological will help in your diagnosis and treatment.

Have it checked: For typical muscle strain, things should be healing at your age. Since it seems not going expected way, recommend visit to a physician and get this looked at, as there may be more going on here that needs attention.