Is it okay to have 2 FUE procedures in 3 days (a day gap between)?

Many doctors do different things, but there should be no reason why you need to have surgery over several days.  2000 to 3000 grafts (sometimes more) are routinely done in a day.  Unless your surgery was difficult or there are other reasons unknown from your explanation.

That is fine!  We are doing it on a regular basis for larger size procedures. We usually offer 2 day FUE when the numbers are over 2000 grafts since 2000 is the maximum we can harvest in each day.  It should be noted that the harvesting donor areas should be separated in those days.  For example half of donor area is used the first day and the second half is saved for the second day.We call large FUE procedure, giga-sessions or mega-session FUE hair transplants. In those cases patients can come in two consecutive days but we can also do them up to one week apart from each other.  Each day is considered a separate procedure. These are the techniques we use for gigasession FUE transplants in two consecutive days:Pre-made sites:  We make all sites (incisions) at the begining of the first day after administration of local anesthesia. This let us start implanting the grafts as soon as they are harvested and not keep them out of body for a long time, which can improve survival rate of the grafts.Serial extraction-placement: This reduced the time grafts staying out of body by placing the grafts right after extracting a small group of them without the need to wait for harvesting them all.Chasing method: Allows removal of the grafts from the skin very shortly after the surgeon score (incise) them.  This helps with the flow of the day and efficiency of the procedure. Advantages of 2 day FUE procedure:Patient can get larger number of grafts in short period of time.Patient will be going through the post op care like hair wash after hair transplant and possible short term complications like swelling, scabbing, etc. only once. Patient can see the final results faster

Yes this is very common to split an FUE procedure in half. Commonly at our clinic we will perform 1200-1600 grafts on day 1 and finish up a case 800 to 1200+ grafts depending on density and need. However, at our clinic we make sure not to decrease the density as to cause a "moth" eaten look which a see through in the donor from over harvesting. I'm quite sure your clinic knows this and plans for this.