It sounds as though you spend a lot of time worrying about when you will worry.
Your body and mind is strong. Trust in it. It has an inherent inbuilt knowledge of how to function. We have to think about our heart beating no more than we have to think about detoxifying in favourable circumstances.
I only started the Master-Cleanse last year to keep my friend company.
No health problems, fit and healthy as anything. The Master-Cleanse and subsequent changes due to that only made me thrive even more.
And by way of translation, Grotty = crappy
Keep up the awesome work and listen to your body. The Master-Cleanse makes it easier to do that when you trust in the process of course.