My thoughts are making me anxious

I get a lot of unpleasant, unwanted thoughts For example: When I pray and I say Glory be To God I get a thought about a person or more with health problems and the thoughts makes me think that I'm saying Glory be To God that that person is sick or as if I'm happy for the fact that that person is sick even though this isn't what I mean.

Or when I pray sometimes I get intrusive thoughts that make me think that I'm actually praying to get an illness.

When I hear or say certain words like:Yes.I get intrusive thoughts that make me think I'm saying the word yes for example to again a intrusive thought in my mind that is a question like:Do you want to get an ilness?and not to what I actually meant to say that word to. I know God knows my heart but still these thoughts are causing me anxiety.

*Other examples would be that I get anxious if I think positively because it makes me think that if I do so,something negative will happen.

Also often,when I get certain thoughts or think about certain things or when I imagine unpleasant scenarios,I get thoughts that make me think I will get a health problem because I thought about those things or because I got those thoughts.

And if someone could answer this: From what I've read from other posts from people with similar thoughts people said it's ocd.
Is all that I've described OCD?

Sometimes I get anxious because I think what if some of these thoughts which I described when I said :*other examples, may be from God and then I'm blaspheming if I think they may be from OCD or the devil.

I've asked my priest how can I discern what thoughts are from God and what thoughts are from the devil and he told me that If I remember correctly,the Church Fathers tell us that thoughts from God bring us peace and joy and that thoughts from the devil cause us anxiety and distress.And so I thought this is probably ocd or the devil but then get what if thoughts:what if some of them were actually from God?

Thanks in advance