Help - constipated after 21 day fast

On Monday I ended a 21 day fast - mostly water but an occasional fresh juice.
Since ending the fast Monday, I've eaten some grapes, a couple of apples, an
orange, a few prunes, some baby spinach leaves, and a tomato and a cucumber.
I have not had a normal, natural bowel movement in well over a week. I have tried a salt water flush, a suppository and a couple of enemas. The only thing that comes
out is the water with just a few very small pieces of waste. I am not having stomach pain or anything. Do you think I have something serious wrong or maybe
I have not eaten enough food for a larger bowel movement? Opinions and suggestions
please. Thanks.