A broad generalization: yes. Chronic problems of any kind--health, emotional, family, etc.--can, if not resolved, dampen our emotional responses. It's not full bore depression but a rather early stage where our emotional responses are sort of anesthesized.

Would be useful to take a good inventory to see if you have become compulsively absorbed with the Cluster (or whatever the issues are). Chronic watching, anxiety about the issue, waiting for the next event--whatever--takes its toll.

If you want some assistance, look for a counselor who works with cognitive therapy--it's an ideal approach for this kind of issue.

Aside from the clusters, I have chronic depression.  I've been on meds for it on and off.  I definitely find that when I'm not on anything for the depression, a cluster will REALLY sink my mood.  Last cluster sent me into a deep (eg, missing work, couldn't get out of bed) depression for three months after it was over.  I've read that this isn't totally uncommon.  Since that last cluster, I've stayed on anti-depressants and this cluster, I'm emotionally fine.  I'd recommend seeing a therapist.

If you're in college, check with your health service.

This is one choice where you wnat to ask around, your doc, others you think may have first-hand knowledge of local therapists. Don't rush this decision.

If no such sources, you can look look in the Yellow pages under "mental health couselors", "psychologists". Don't be shy about calling and talking on the phone, asking about their approache. Your intuition is important: how do you react to this phone contact--comfort, caution, distance,etc.