My DP has experienced night terrors occasionally over the last ten years, we think sometimes in times of high stress, but it's been difficult to pinpoint specific reasons. These are usually intense outbursts, quickly followed by sleep and normally not remembered well in the morning. He didn't see a GP about them.
More recently, DP has been diagnosed with with another issue and has undergone the trial and error of finding the right medication.
The night terrors increased temporarily, which might or might not have been a side effect of the medication (possibly more the stress of the diagnosis and appointments) alongside other side effects which did seem to be down to the meds, such as headaches and erectile dysfunction.
He apparently reported the night terrors (he thinks he acknowledged that they weren't new) failing to mention erectile problems through embarrassment, and this was accepted as a reason to change again.
Now, he's on the last option, it's helping him, but the night terrors are worse. He throws things, grabs and hits out like he thinks I'm attacking him. My jaw got badly bruised last time and while he was appalled at what he'd done, he hasn't asked for help.
I want him to talk to the doctor and see if anything can be done, but he's frightened he'll be taken off the medication he needs (whether it's a factor or not).