I don't usually ask about health problems because it is usually a case of "give it a day or two" or "call the vet". But in this case, it seems to be getting slightly worse rather than better, but not acute:-21 year old horse, with PPID successfully managed with Prascend. Turned out on poor grazing because he is also an itcher and one of those who look at a blade of grass and get fat. A couple of days ago I moved him onto a small track anther horse had grazed down with no problems - no obvious toxic plants, and certainly no ragwort. On Saturday I noticed one hind leg looking puffy, not sore and not lame, so I employed my usual strategy of wait and see how it goes. Yesterday both hinds were Filled and today one of his fronts is showing signs.I have given him a bran mash and am about to get him some milk thistle to support his liver but what do you reckon? How many days before I ask my vet to come and take a look? Other than the legs he is fine in himself, although lost a bit of his appetite (for what is really pretty boring high fibre diet to be fair)