I have noticed my tonsils change shape regularly, new pockets are forming and they are changing constantly over the last 6 months. is that' normal?

Be examined: In the absence of an active infection of the tonsils and if they are not grossly enlarging in size, I don't believe this is a major problem. To be safe, this should be examined by a doc and perhaps a throat culture should be done. The tonsils are corregated in appearance normally and may change normally in shape from time to time, to a minor degree.

Tonsil stones: You might be describing tonsil stones. It is somewhat unclear based on the history of the problem. Check out this link: http://www.webmd.com/oral-health/guide/tonsil-stones-tonsilloliths-treatment-and-prevention Also check out the image and see if this fits your description.

What's worrying You?: Tonsils are difficult to see in their entirety without the help of a tongue depressor (which doctors use when they check the tonsils). Unless you have sore throat you should not bother to look at your tonsiils and worry unnecessarily. Without any pain in your throat or there being a growth on the tonsil, which comes in the way of eating/drinking, you have no good reason to worry about yor tonsil