Well.... i have all the challenges mentioned by others plus a most peculiar one... my body tenses up.... i asked an SRF monk. He said it was karmic. Sounds like a ready made answer for questions that do not have a descriptive answer. I get this picture of being in a tight space. Locked in a closet or very small prison cell or tied up so I can't move. Anyhow many times meditation is productive so we just have to be patient with ourselves and continually look for solutions to these challenges that inevitable arise.
I've been thinking about this, I will ask God for help. After all, it can't hurt to ask.
Yes sometimes it takes a while to recognize how the past affects the present and where it originated. LIke fear of something or irritations on the body from past life episodes. Anyhow your suggestion is not going unheeded.