I am 5 weeks out and between week four and five i started noticing that the portions I was able to tolerate we're quickly becoming smaller and smaller. By day six of this my chewable Vitamin is making me experience the feeling of being overly full. I have moves back to liquids for the weekend and am now having a hard time with even Clear Liquids. This is super bizarre to me because I have been doing great up until now and other than not being able to eat i feel fine.

I have a barium swallow scheduled for tomorrow. Has anyone else had this happen? Is this stricture?

No. I hope this gets resolved. I do not think you are alone I have heard folks having difficulties eating but not to the extreme as your situation.