You as a Turk are worried about ISIS? In what way do they constitute a threat to you or Turkey? Surely ISIS is no match for the mighty Turkling army and surely ISIS knows that?
As Xside noted, our country supported them. There was no ISIS when the supporting began of course. There was the FSA and then al-Nusra. They seemed to be under perfect control till this new formation called ISIS surfaced. I still despise the government for having supported renegade terrorists and backed the guerrilla war against Syria in the first place. But now the monster they created is totally out of control. There isn't a day without threats from them now.
Today, for instance, they uploaded a video to threaten Turkey about taking action in İstanbul. This they did because they want water from a dam on the Euphrates (Atatürk Dam) to be released, so that they can get potable water on the other side of the border. They are becoming trouble. First, it was about killing the Shia. Then they started killing the Azidi Kurds near the Turkish border. And now they call the Turkish government "infidels". I mean they call that name to a highly bigoted government that feeds on Islam, the true Islam-mongers I'd dare say. Go figure. If they ever start doing things like suicide bombings in a city like İstanbul or other metropolitan cities, that will not end lightly.
Also, forgot to mention: There is no mighty Turkish army anymore. The government's affiliated "mujahedeens" have been working for years to grasp control of the army, which used to be partly independent and a strict defender of the republican regime. The situation is entirely different now. In the past, the Turkish army you mention would have already stomped on these buggers for having caused so much trouble. Now we hear reports of the Turkish soldiers on duty changing shifts under supervision of these terrorists at Suleiman Shah Shrine (a piece of historical shrine on the Syrian lands, which is considered to be Turkish territory). Also in the past, if the government representatives started breaking the atmosphere of secularity and threatening the secular regime, the army would step in and give out a harsh warning or even go on and execute a coup-d'état. Of course this is no pleasant business, but neither is the former. The chief commander of the Turkish army wouldn't -even if hell had broken loose- bow to the prime minister in the past. Now the current chief commader literally worships him and will almost kiss his ass. Things have changed a lot and Turkey isn't what it used to be anymore.