Hi, welcome to YT!
Sounds to me like she's got good reason not being able to get comfortable. Seven babies is alot to carry around (how big is the mama, normally), so I'd say she's acting pretty normally. Don't let her sneak under that bed and have her babies there! I've had just one litter (so far); I know how anxious we can get those last weeks and days before whelping. You've got just one more week to go (maybe less), (maybe more
;sorry had to put that in there), but those babies will be here before you know it!
Good luck........I'll be watching for the happy news.