Is it normal to not trust your parents

They have never done anything to me, and generally aren't malicious or deceptive people. The only things they've done to me were spank me as a child (which I feel like is normal for most people), and have the inability to make plans with them since they tend to change things last minute. From the outside they're smart and genuine people who have good values, but for me it feels like I can never talk to them, or trust them with anything important. I feel like confronting them won't help me because these feelings aren't being caused by anything in particular. Idk, I just hope I'm not the only one out there who feels this way