Buspar, is the first week the easy one?

Hi there, I agree with WildcatVet, great explanation.
This may be repetitive, but wanted to just add, Buspar, can absolutely, demonstrate an initial response, six or seven days into therapy. The effectiveness, as the drug level or amount of drug, available to the brain, to continue to produce more positive/therapeutic response, reducing your specific symptoms experienced, should decrease. It can take up to six weeks to provide full therapeutic effect and overall, relief of extreme symptoms experienced.
Best Wishes, Cindy

Hi, vcarrillo!
It's very common to experience new or increased side effects when upping your dosage... and you doubled your dose.
Your doctor is dropping your dose so your system has more time to adjust to the medication. It just takes time and that's okay.
You may even find that the lower dose works effectively to control your symptoms; if not you can always raise your dose later on.
What you felt were "normal" side effects that some people have when first starting a medication especially if you're sensitive. So relax and let things be for now.
Best regards and don't worry too much about this.