Can scabies cause other symptoms like feeling run down an anxious? the doctor said it was scabies and not herpes but i'm still nervous.

Technically no: But the fact that you have scabies may have been emotionally upsetting and that can make one feel nervous and run down. If it persists, then see your doctor. You may need some abs...Sometimes anemia or nutrient deficiencies can also make one feel run down. Anxiety definitely wears on out as well....

Run down & anxious: Scabies is a parasitic skin infection which can cause intense itching which worsens at night. If you check your skin you can see little burrows made by small blisters and bumps in skin folds. It doesn't usually cause generalized symptoms. But if you aren't sleeping due to itching or are really apprehensive about your condition that could lead to fatigue.