Shamrock Shakes are back at McDonald's, and I couldn't be happier. Although they are a simple mint flavor, anyone who has had one of these seasonal shakes knows they can be addicting, and if you haven't tried one yet, I just have one question for you: What are you waiting for?! I should warn you, though. Once you try them, you will become addicted. Here are nine things everyone with a Shamrock Shake addiction knows to be true.

1. When they're not in season, all you do is dream of them.

You long for the precious few months that these shakes are in season. You daydream about the glorious moment when you have reunited with your love again.

2. You drive by a McDonald's almost daily starting at the beginning of February.

Although your New Years Resolution was to start eating healthy, you know that Shamrock Shakes will be back around mid-February. You may even have multiple McDonald's that you check religiously for the first sighting.

3. You text all your friends to let them know that the shakes are back.

The second you see the signs that Shamrock Shakes are back, you send text all of your closest friends, usually with a picture for proof. You might even go as far as making a Facebook or Twitter post about it.

4. You describe them as "heaven in a milkshake."

Anyone with a Shamrock Shake addiction knows that there is nothing else in this world that could taste as good. The only thing they are comparable to is what heaven must be like.

5. Nothing can stop you once you get a craving.

You've been late and have had to cancel meetings because you need a Shamrock Shake, like yesterday. In fact, this can be used as a valid excuse to be late or cancel plans when you have friends that are also addicts.

6. You panic once St. Patrick's Day is over.

Once March 17th passes, you know that Shamrock Shakes could be taken off of the menu at any moment. You start planning your day around being able to make a last minute run to McDonald's. You never know when you'll have your last shake.

7. You start to hoard them.

You may or may not have had a freezer full of them at one point in your life. In fact, you aren't even embarrassed about ordering multiple at the drive-thru by yourself anymore.

8. Your friends and family tease you about your addiction.

They are constantly sending you images like the one above with the caption, "You when you find out that they stopped selling Shamrock Shakes."

9. You heard that they are making new flavors, and you don't know how to feel.

This year, there are four new versions of the Shamrock Shake, including the following: Shamrock Chocolate Chip Frappe, Chocolate Shamrock Shake, Shamrock Hot Chocolate, and Shamrock Mocha. While you are willing to give these a try, you know that the original will always hold a special place in your heart.