Weird emotional shift

I have been trying to manifest my sp back. He is my boyfriend and I do not even like saying “was.” We have been in no contact for a while.

For the past few months I have been trying to stay strong and practice the LOA mainly through affirmations. During random moments in my day I remind myself that he loves me and that things are working out between us. In my daily life I am actually not very sad or desperate about it. I have been working, doing the things I enjoy, and keeping myself busy. Of course I have small moments of doubt sometimes, but overall I have been doing okay.

But today felt a bit strange. I was not really sad or thinking about anything deeply, but I kept feeling a weird sensation in my chest. It was not exactly pain or heaviness. It would just come for a few seconds and then go away. After some time I felt normal again, but later at night I suddenly felt really down and ended up crying.

Now I just feel drained and I am not sure how to keep persisting again. I would really appreciate any advice from people who have gone through something similar.