Depends if I have actual intent or not at the time.
If I do not plan to kill myself, then the suicidal thoughts become predominantly stressful. Stressful because I am trying to not commit CTB, but the thoughts are aggressively pushy and nagging. Being as such also reminds me of how much I want to commit CTB but won't, for whatever reason at the time. So it feels like as if an out of reach carrot is always being dangled in front of me.
If I plan to kill myself, then multiple emotions. Comfort because there is hope that my lifelong suffering will finally end. Sadness because I will not see my loved ones again in this earthly realm. Anger because when I want to CTB the most, I am also most aware of how difficult it is to actually CTB. Fear because I am actually scared of death and what happens afterwards (for example, I am scared of there not being an afterlife and that I will actually never ever see my loved ones again, or I will be reincarnated into a worse life).
Regardless of how I feel, all the emotions are at an intense level. So the suicidal thoughts induce strong feelings. Then again, so does nearly everything in my life (just BPD things).