Hi Heather,
Yes, dont be alarmed, all of these tests are normal. Most scans are repeated on an 'ongoing' basis just to check if anything new is happening. The time between scans differs for most people. I personally have bone scans, chest/abdo/pelvis CT's, etc every 3 months, but then again I have advanced BC with widespread bony mets - which they must keep an eye on. The blood tests (I have mine monthly before each treatment) are also 'par for the course'!
Unfortunately you will get used to them and they will soon become a part of your life!
Di :)