For the last day and a half I've seen blood in both of my dog's stool and they've really been going to town on our grass for about a week. I didn't think much of the grass eating because the snow just melted (for now) and they like to eat a little grass after it rains or snow melts but they're trying to eat grass every chance they get outside now. I thought it might be a little digestion problem so I've been adding tripe to their meals and sprinkled some kelp and fish oil/vitamin e syrum into their egg. When I picked up last night's poop it was on the soft side, noticeable grass clumps and a little blood. This mornings poo was pretty much the same only softer. Should I take them to the vet or should I try to treat them at home first. There hasn't been in change in personality. They're still happy and playful. My girl is on the thin side recently but their weight has continuously fluctuated between being underweight and normal since I got them and none of the vets I've taken them to have been able to help with that.