I had twilight sedation twice within 6 months for different procedures. Is there a limit to how much sedation I can receive?
In general, the medications used for twilight sedation or monitored anesthesia care are cleared from your circulation within a week's time, so that the only limitation in receiving sedation is to avoid having more than.
Not that I know of.
As long as you have had no complications or side effects, two seditions within six months is reasonable.
I've sedated a number of patients for radiation therapy, typically every day for 7-9 weeks. I haven't observed a change over that time, but it is possible that there are subtle changes. I don't think that what you describe is approaching the limit on recovery.