Just as not each acid trip would be the same,withdrawals or even the meth,etc experiences can and are different.Just the same as each strain of weed gives a different type of high,some are a body buzz,some a head buzz,some make you zone out,others give you energy.

So having a different experience does not equal DID.

I think you should probably talk about all of this when you go on the 10th to ease your fears.