Blip after 4 months

hi all i have been back on cit for 4 months - the last month on 30mg. I have been feeling better. Had a good week last week. Went camping with friends for a couple of nights and did a really hard 3 hour hike without panicking which i would never have been able to do a few months ago. But the next say i was exhausted and then on monday i had a really busy stressful day at work and had to work late into the night. Bam! the anxiety came back - terrible nights sleep, bad IBS the next day and today aplitting headache, feel weak and anxious. Has anyone else had the experience of a relapse if they do too much? Many thanks

i get it if i over do things in withdrawal