Is this a normal reaction?
I've posted a few days ago about DF drinking and DM also drinking (albeit not as heavily) and enabling him - there's a very long and convoluted backstory.
I'm not very good at confrontation and only see them with my DCs every couple of weeks or so usually so can't find it in me to bring it up. Im not around them often enough to see much but DBro who lives with them says there's alcohol involved everyday and that they usually try to pull it together / make sure DF is sober / clean the house etc when I visit.
I visited this week as agreed, when we turned up they were both sober but having a small glass of beer/cider of some sort after work. DM then didn't have anything else but within an hour of me arriving DF was completely drunk. He didn't drink anything in front of us and I didn't see any other alcohol anywhere which leads me to believe he has bits stashed around the place and just drinks in secret.
The visit itself was uneventful apart from that. DM doesn't talk about it, DBro brought it up when he came home from work and asked if DF forgot we were coming in a bit of a standoffish way and she asked him not to talk about it to her and mumbled some vague excuse.
I can't help but think my DFs drinking is getting worse and it was almost surreal watching him and the way he looked yesterday.
Halfway home I was exhausted even though I didn't do anything taxing that day and a headache set in and didn't let up until the following afternoon, I remember last time I had this bad of a headache was when I did a small day out with them a few weeks back with DCs and came home looking like I had been out on the booze all day and exhausted beyond anything - more so than when I had sleepless nights with baby DCs - again even though we didn't do anything taxing and nothing eventful happened.
This seems to be a recurring pattern.
DP has suggested it's due to stress even though I don't actually feel that stressed seeing them, he thinks it's because I internalise it (not untrue) and maybe don't realise how much stress seeing them can bring me and the headaches are just a side effect.
AIBU to think he might be right? Is this a thing? Or am I just being dramatic?