Hi there, 

I'm sorry to hear you've had such a hard time over the past few years but definitely think you're doing the right thing getting things checked out. Several reasons for me saying that - if there is something it's much easier to deal with if caught sooner rather than later, if there's nothing then it'll put your mind at rest (your mental health is important) and any tests will also provide a base for comparisons for any future investigations you might have. As a sonographer I much prefer having previous images available for comparisons as it helps with my interpretation of the current scans and let's be honest - we all love a straight forward scan to help catch time on a busy list as it gives us a bit of breathing room when the lists are busy. So never ever feel like you're wasting someone's time! Hope you're in the latter situation when you do go next Tuesday. As hard as it is, try not to worry before you need to worry.