TMI question about Algin. I started taking it the day before yesterday. I took it 3 times yesterday and got nasty heartburn the first two times and felt crummy all day. I don't know if this is relevant but I ate a bunch of watermelon that day. After I ate it my daughter informed me that it makes you retain water. So I hardly went to the bathroom all day. This morning when I got up I drank a glass of water with lemon that brought on a welcome need to urinate. Here's the TMI part, on the toilet paper there were gray smudges. Very strange. It was not from my rear. There was nothing visible in the bowl, just on the tissue. And I've felt much better today. I'm sure you know what I'm wondering....