Could I have Autism?

I believe I may have mild autism.

I have started to recognise the traits but this manifested itself on New Years Eve.

My daughter surprised myself and my husband by making an announcement that herself and her partner had become engaged.  This surprise put me into a very strange place. I felt as if my brain had melted and I found it hard to speak. I could not say I was happy and felt like I had to leave the room. I was told that I showed no emotion whatsover. I love my daughter and am very fond of her partner so it is not that I was upset with the news.   My daughter is extremely hurt and angry with me. Once I had got over this extremely weird reaction I could tell her how happy I was but the damage was done.

Over the years I have had problems making and keeping friends and feel like I have to work extra hard to keep them. I am very bad at keeping concentration during a conversation and often interupt people when they are speaking. I try not to do this but always end up doing it anyway. I do not do well in situations where there are bigger groups of people present and find cannot listen to conversations. 

I have always thought I was a bit strange and not like other people. I can get angry over silly things but I hold it inside. I find it very difficult to talk about my emotions. I have held onto past hurtful situations for years and if I get down they crowd my thoughts.There are other things about me that seem a bit odd.

I feel pretty worthless at the moment as I have hurt my daughter so much and I cannot explain my reaction to her good news.

Sorry to have rambled on but I have no one else to speak to that may understand.