Shaz, my Molly does this but hers definitely is age related. She's 20 and a bit and has feline dementia and will often walk somewhere, stare at a wall and meow loudly, VERY loudly. So same as you I often get up, find her and give her a cuddle. Most times she's then OK but other times it'll be not even 5 minutes later and she'll repeat the process.
But I've also learned to ignore it at times and give her time to 'find' herself, esp night times.... I get little enough sleep as it is with her trampling on my head that I refuse to get up unless I have to
I really do hope that you still have a good few months with your gorgeous girl, keep on spoiling her x