Hi, jjh29 and welcome to the forum. I'm glad you found it. I don't think I know enough about your situation to reassure you personally, I'd like to know more what you mean about losing time (how much, do you lose all memory of it, do you have other concerning issues that accompany it) but I'll tell you about mine. Dissociating for me happens in two ways. The first, I feel outside myself, and liken it to running on autopilot mode. I do well this way, no problems at all, except I seem more flat, unemotional. The second, I feel detached from reality, as if neither I nor it is sometimes quite real. I still function through it though. I have not had any negative consequences during dissociation except that sometimes I feel terribly frustrated and scared about the sense of disconnection and dispassion I have.
I don't know that time loss is normal in general, was your therapist referring to "normal" for your type of situation perhaps? I wonder how he meant it, I can see how I might lose awareness of time passing while I was engaged in something compelling, or while I was dissociated, doing nothing, and then snapped out of it, but I have not experienced the type of deep dissociation where at say 8am I am eating breakfast and at noon I am in a store with no recollection of having gone there.
So, I'd be curious to hear about your personal experience of time loss. I will tell you, as a mother, that I have never found any of my symptoms strong enough to interfere with my protective instinct for my daughter, except that I lose my temper, something I'm working on. But dissociation has never been an impediment to me caring for her, which I hope may be reassuring to you.
I imagine others will have more relevant experiences but hope this helps a little.