taking 5htp for extended periods of time causes the downregulation of serotonin receptors(turns them off,) so taking it for more than a few days in a row is actually counter productive. not only that, its too expensive to take on a regular basis.. if youre taking it for depression an SSRI would probably suit you much better.
i totally relate to what youre saying though.. 5htp makes me feel like im in a dream, thats a good way to describe the feeling actually. it just makes me kind of out of it. i limit my use of 5htp to only a few days after taking mdma.
coming off of it shouldnt directly cause your anxiety to increase, its probably just the idea that you havent taken it thats driving your anxiety levels up. just give it a few days and your serotonin receptors will upregulate and your body chemistry will balance out again.