sometimes if my obsession goes away, fear without cause comes in its place. How could I live without intrusive feeling?

Hi dianedian, I’m no doctor, but sounds to me almost like some sort of back door spike. Like your OCD bully is lashing out because you aren’t paying “enough” attention to the obsession and fear is creeping in to take over the void left by the obsession. Almost like it is trying to push you towards giving into obsessions/intrusive thoughts instead of dealing with the fear. You could try to just sit with the fear like you would with other intrusive thoughts, especially as you said you can’t trace it to a trigger. Maybe sit with it and don’t try to think about what is causing the fear or what the fear is of…just try to acknowledge it’s there and try not to dwell on it, seek the source, or prove/disprove it….try to let it be and move onward. I know, that’s much easier for me to say since I’m not the one facing the fear you are, but treating this fear as you would the obsession it sometimes replaces may be helpful. Just a thought. Stay strong against your OCD bully and hang in there.