Yes, you could be afraid of goal. I am. Not consciously, not deliberately but when I get nearer, panic sets in.
Like the previous thread - no more to strive for.
Also, for many years, tho not any more, I 'knew' that life would be magically be better once I was thin. The nearer I get the more it's a case of 'what if it's not?'
Loss of identity - we might have spent years (in my case, nearly half a century) trying to lose the weight but it is who we are/have been. Our appearance defines how others identify us and how we identify ourselves. When I'm in a Depression, then, fat or thin, my dread is the feeling of creeping non-existence. When I threaten my physical identity by losing 100+lbs, those feelings return with a vengeance.
The level playing field. Last time, when I got down to 16lbs off goal, I felt that I wanted to tell people I met for the first time that 'I used to be fat, you know'. I didn't! but I was a lot more comfortable among people who'd known me before and so who (in my mind, anyway) would view me as 'hasn't that fat woman done well' - but still be making the allowances I assume people did for fatme. By which I mean, a lot of people really do make assumptions that 'fat' = 'stupid', so I always felt people were surprised by my personality, which is not stupid but bright and smart and with a killer SOH. Once I got to 'normal' - well, no-one would be surprised any more, I suppose my personality was normal too, and I feared normal = mediocrity.
I hate putting on weight, I hate feeling bloated and fat but, in a weird way that I've never realized let alone vocalized before, I'm never happier than when I'm at the start of a Diet. I feel in control, I have a plan for my future. Once I'm at goal, I won't have those.