black blood period every month
for the past 4 months maybe more, my periods have been black and may only have a tiny bit of red blood in. they are thick and ocassionally stringy and clumpy its normally 3 days ish very light then two days quite clumpy and disgusting then dies down and lasts for another 3 or 4 days very light i get the usual cramping,
i have been on the pill on and off, i stopped the pill for about 6 months then restarted last month.
normally my periods were the usual red blood with the darkening during the end of the period , but now it allways seems black/brownish. ive been reading the forums and found out this is old blood, but its been happening for quite a few months? and dosnt seem to have hardly any red blood. this month it did have slightly more red in this month than before
should i be concerned or is this just normal.