I feel like I have issues with irrational guilt. Situations that I intellectually know should not cause guilt in me make me feel extremely guilty.

One of my biggest examples is holidays that involve presents. It doesn't matter if it is Christmas where everyone gets presents or my birthday when it's only me. I love giving people presents, but I see presents under the tree for me and I feel really guilty.

That's not the only situation. I feel guilty thinking about the fact that I got a new cat about a year ago - what if she could have had a better, happier life with someone else?

I'm posting this today because I had another example, and I'm not entirely sure how I'm supposed to react in this sort of situation. I went to Starbucks today and thought about ordering one of their new holiday lattes. I asked what went into it and the girl I was speaking to really talked it up. I ended up going with another one that I've had before (I'm not very good with change, and another car had pulled up behind me so I decided to hurry on deciding). When I pulled up to the window and payed with a card. Then, the girl said that there was extra milk from my drink so she made me a sample of the new drink. I thanked her and realized that since I pay with a card instead of having cash I couldn't tip in the drive-through. After I left, I realized that the fact that she had said that it wasn't heated as much so that I could drink it may have meant that I should have tasted it while I was there. But the other car was behind me and I panic at the idea of holding up the line.

I'm not very good at social cues, but I don't think I should be feeling so guilty over this... It was her decision to do something nice for me, and there wasn't much I could do in response. Maybe I should have tasted it and commented on it while I was there, but now I'm obsessing and feeling guilty about it. I don't know...

Does anyone have advice on how to deal with guilt? Between trying to figure out what I should feel guilty about and trying to manage guilt that I don't think is reasonable for the situation, I want to learn more about how to manage my emotions.

Sorry the post is so long...