Simvastatin and benefit from

I am not sure of the origin, but I have my issues outlined below since I switched to the mail order Simvastatin. I was getting it from Rite Aid for over 2 years without issues. I found out mail order Simvastatin was made by same company as Rite Aid, TEVA.

My issue is throbbing in neck, high blood pressure (HBP), twitching in eyes (prob due to HBP), uncomfortable in general. I also know that I took pill in morning and by 9am issue would start and get worse into lunchtime, where is was the worst, then subside by 2 or 3 pm. Doc said it was nerves and stress and gave a script for that. Also said get off of simvstatiin for 2 weeks. Well without much or any change to the stressors in my life work, stock market, etc, I am not experiencing the throbbing or HBP. I have not taken the script for stress or the Simvastatin either. Didn't like the idea doc said you can get addicted to stress pill. I will get back in Simvastatin shortly, but do expect to be back where I was within a week or so. Anyone else experience this throbbing and HBP.