My 12 year old cat (very overweight) showed a lung tumor on x-rays and a small amount of fluid in his other lung. No testing was done to determine if the tumor is cancerous. He does get short of breath when having a bowel movement - he strains/sgrunts. My vet said he has a small pelvis, and given he is a large cat, he strains when pushing - there is no sign of a blockage, but it seems as though the pushing makes him breath heavier perhaps due to the lung condition. I was told that he could not be put on prednisone for the tumor as it would increase the lung fluid, and I could not put him on Lazsix as it would encourge the tumor. I have an appt scheduled in one week with a holistic vet. Would it be wise to have the fluid in the lung drained (as I understand it was not a lot of fluid at the time of the x-ray) prior to the holistic vet appt. to alleviate this issue or would that perhaps stress him and make it worse? My vet said we could try it, but it was not something she recommended at the time she examined him. Right now, he is eating/drinking, doing his normal routine, but just a bit slower and his breathing is a little heavier at times- he ocassionally coughs as if he has a hair ball that he cannot get out, but with a more flemmy sound. I also just started him on ES Clear, an herbal tincture for cancer/immunity, which I purchased from Pet Wellbeing. Any recommendation on what to do between now and the visit with the holostic vet would be appreciated. Thank you.