I have been taking 25mg Atenolol for several years, various doses depending on whether it slowed down my BP better or not.

Now the Atenolol stopped working, started 80 mg Diovan PM and Atenolol 25mg in the AM, just 3 days ago. Diovan had gotten my pulse in the 80s, not good after years of in the 60s. so she added the Atenolol AM. Have been quite shakey and extra fatigued, will this go away after a few days?

Thanks for any help,