Fatigue that I experienced is hard to describe. It wasn't like "I need sleep" fatigue. It wasn't like I couldn't function fatigue. It was more like an overall body weakness where I was running on weak batteries. I would have a small burst of energy for a couple minutes and then the batteries got weak fast. My mailbox is about 100 feet from the house. I could get there fine but it was a struggle to get back into the house with two flights of stairs. I had to sit for a few minutes before doing anything else.

Now, please, do not think this happens to everyone. Y90 is generally tolerated well as I understand it. I went along for three weeks with the expected side effects and started to come out of it and had some complications. My tumors were pretty big and as the tissue died my body went into protection mode and created a layer of fluid around my liver as a cushion. This caused bloating, pressure and pain under my ribs. I started running a low grade fever each afternoon which just added to my other symptoms. Those fevers went on for 11 weeks. I am 14 weeks out from the Y90 and feel really pretty good. now.

I assume by your name you might have shorthairs? I am a lifelong lab person myself but at 73 have reduced myself to a little lap dog. Anyway, I wouldn't expect to do much dog walking right away. It was hard for me to take him out to do his business. Before the complications I was walking him over half a mile and increasing that slowly. After the swelling I was good for maybe 100 yards. Today I am back up to over a mile,

My radiologist said often the recovery is linked to the size of the tumors which seemed to hold true in my case. My last MRI showed 98% of the treated area killed so it's hard to argue with that kind of success.

I hope this helps. Please reach out of you have any more questions.