I have a male pink toe who has been "scrunched up" for about a week. I was feeding him today, the last feeding was last week, and his abdomen has shrunken. A waxworm was placed by his feet, and he started very slowly moving; his legs were having trouble stretching out and it looked very painful for him to move. I have suspicions of what is going on, but I'm pretty new to tarantulas, so maybe someone more experienced can help?