Autumn Lady , I just lifted my hair up away from my scalp at the top/crown of my head and it was quite painful. As someone else said, like releasing your hair after its been in a tight ponytail. I suffer from migraines though they are only occasional now compared to when I was younger, the last one I had was just last week but I had forgotten how strange they make you feel. I too get the aura's but also find difficulty with words, for instance I couldnt remember the name of lasagne, and said to my daughter, " you know the mince stuff with pasta sheets in between"
or, for sweetcorn, " yellow peas" Its a bit disconcerting but once I got home and had an early night I was ok next day just a bit washed out. I also get extremely anxious with them, en route home from my daughters I felt every other car on the road was out to get me and I was convinced I would never make it home in one piece. Luckily my husband is an excellent driver and kept telling me everything was ok but I felt embarrassed I was so uptight .
CKLD, I know you cant use the Philip Kinglsey Elasticiser before or immediately after colouring your hair as it interferes some way or other with the process.