As a sissy slave to a Mistress some time ago, Mistress decided that as She had to endure Her monthly period, so too should Her slave. Since then, i have simulated menstruation over a 5 day period every month, simultaneously with Mistress. This simulation involves making my nipples tender by fitting tight "O" rings over them; making myself feel bloated by drinking a large glass of water every half hour and wearing a tight corset, and by giving myself an enema after which i insert a tampon. The size and nature of the enema varies from day to day. In the first 3 days when Mistress' flow is light, the enema is about half a litre of water mixed with a small amount of ketchup. On these days, the tampon gets soggy and i might leak a little and so also wear a light panty liner. On the 4th and 5th days, Mistress's flow is heavy and i give myself a full litre enema of water mixed with extra ketchup, plugged with a tampon and supplemented by a large, heavy flow panty liner for this volume of enema inevitably leaks. On the 6th day, i repeat the same enema, tampon and light panty liner that was the rule for the first 3 days. i find that on the light days, the tampon takes up most of the enema and leakage is slight and absorbed by the panty liner but still gives me some discomfort so that i am constantly reminded of Mistress' suffering. On the heavy days, i find it impossible to avoid significant leakage and must give myself another enema and start over with clean tampon and panty liner if i have had to make a dash to the toilet to void. Of course, all of this is inconvenient, uncomfortable and stressful and makes me just as irritable as Mistress is during Her menstruation. By the end of the day, i too have an aching head, brought on by the stress and perhaps excess coffe which i am often asked to drink, especially on the heavy days. This does not of course exactly replicate all of the symptoms suffered by women but it goes a long way and gives me a greater appreciation of womanhood without actually putting me off wanting to be a woman. There is something special about coming to the end of the 6th day and then pampering myself with a clean douche (soapy enema), scented bubble bath, exfoliating scrub and body lotion all over before slipping into a sexy satin nightdress and getting a great nights sleep at last!