What should I do? I have recently been in contact w/ a childhood friend............?

We were always really close & the weird thing is that for some unknown reason lost contact, when we would normally have never. It's been many years- but she responded back to me that she isn't getting her emails on her Yahoo account from, not only me but others. She also said he relationship hasn't been quite right. She never received my last email & I but wonder if someone else is deleting her messages. I have had dreams over many years that something is wrong & she's needed my help. She told me she doesn't have much contact w/ her sibling- they always were in contact w/ one another. Also, she said that her & her mate were in a 'not so good' relationship & only staying together for the kids. Now, this is stressing me- because I know this girl & we could always sense things when things were wrong. I am trying to be cool- but I still have a weird feeling that someone has hold of her emails & is deleting things. What can I do???