weird period

So I got my period on the 4th and mostly ended yesterday just extremely light spotting today. now I'm one of those people that always has a crazy heavy flow for like 5 days this time I had very minimum amount every time I changed like what I would normally considered a five or six was day one or two and pretty much the whole way through. so now today I have very like almost thickish mucus and it almost seems like come I would get from having sex or earlier in the day. I'm also getting weird little almost muscular flinches not quite cramping and I just don't know what to make of it. Anybody got any ideas?