did other dwarves in thorin's party other than thorin suffer from dragon sickness?

That seems quite likely as several did seem to openly support him over Bilbo or the Men of Lake-town without any reluctance or hesitation. We get the first hints of this when the Dwarves note the camp of the Lake-men in Dale:

Then Bilbo longed to escape from the dark fortress and to go down and join the mirth and feasting by the fires. Some of the younger dwarves were moved in their hearts, too, and they muttered that they wished things had fallen out otherwise and that they might welcome such folk as friends; but Thorin scowled.

So the older Dwarves seem to be more of the same mind as Thorin. The feelings of the other Dwarves are made more explicit after the first attempts of the Lake-men to parlay:

With that the messengers departed swiftly, and the dwarves were left to consider their case. So grim had Thorin become, that even if they has wished, the others would not have dared to find fault with him; but indeed most of them seemed to share his mind -- except perhaps old fat Bombur and Fili and Kili. Bilbo, of course, disapproved of the whole turn of affairs.

It's interesting that Thorin's nephews are two of the few that share Bilbo's viewpoint. After Bilbo admits that he has given away the Arkenstone to be ransomed, we can only guess at which Dwarves were sorry to see him leave.

And so Bilbo was swung down from the wall, and departed with nothing for all his trouble, except the armour which Thorin had given him already. More than one of the dwarves in their hearts felt ashamed and pity at his going.