I've been worried about Chariie, he's constantly dehyrated. So I added water to his wet food and almost removed all cat biscuits, but he needed a lot of water added at intervals, especially before bedtime.
The blood tests revealed he is very healthy, except his immune is bordering on the low end of normal.
The vet said the next test would be chest xray to find out what's going on. When he said that I then realised that the chemical fumes the neighbours are making (it is their new way of harassing me), is making him sick. I kept him inside mostly for several days, and now I don't need to add water to his food. His hydration is ok, it's not too bad, and I'm also giving him vitamin paste to help his immune. Charlie already suffers with bronchial problems, asthma. Therefore he is more sensitive to the fumes. The fumes have been rotten egg gas smell and awful chemical smells. It's really foul. It nauseates me. My doctor doesn't think I should be worried about it affecting my physical health. I'm not so sure about that though considering I don't know what they are burning, and they run indoors or drive off in their car after they create the fumes. So they are worried for their own health.