It can take a good period of time post fill for it to take effect, this is usually why providers have a fixed period of time after a fill before you can have another one.
Can you drink? Does the liquid pass through? Are you unwell at all or time of the month as that can all make it tighter?
If you can drink and its going through ok, stay with liquids for a day or two, then try going back to mash/puree before then trying foods. But if you cannot drink its important that you follow this up sooner rather than later, but its always worth seeing if it will settle for a day or so first before having a defill.