Paralysed: Complete synaptic overload. Motor functions become impaired as the body resonates with sympathetic harmonics. Perhaps they shake violently on the spot, but the overall effect is that of paralysis.

I'd suggest moving confused to 5th and doing sickened at 1st. Remember it's not quite as good as a spell but it keeps coming all day and all night if it needs to. Also, this is a bonus effect, the main event is the damage at early levels, it's only later that you start to get truly effective riders, and that's why the power stays relevant. Nothing wrong with sickened on creatures with few HD, once you get Confused you'll never look back, but then again, once you can paralyse, why bother with any of the others anyhow?

The damage/Hand is a little high, gives you (Level +1)D6 + Level damage, which is still pretty big. Additional Hands up to 1/2 Level makes a good deal more sense tbh.

With regards to the shatter thing, why not just say anything which would be affected by a shatter spell takes 2D4/Hand (max 1/2 Level) damage instead?

All we need do to the hurling object half of Force Blast is make it 25lb/2 levels and it comes back in line with the changes stated above instantly.