Catalog Bloat

Probably temp table related ...but catalog bloat on one of my databases
appears to be pretty bad.

Is the below bloat (table and index) something to worry about?
pg_stat_all_tables show the relations ARE getting successfully vacuumed...

Any suggestions on eliminating? Not sure if tools like pg_reorg are
appropriate (or effective) or even vacuum full (yikes).
I'd prefer not to take a complete outage - but I would if this bloat is
really an issue.

(I know about "reindex system" (duh) - but as that requires me to take an
outage, my question about IF the bloat is a cause for concern still
stands....)

schemaname | tablename | tbloat | wastedbytes | iname
| ibloat | wastedibytes
------------+--------------+--------+-------------+---------------------------------+--------+--------------
pg_catalog | pg_attribute | 9.0 | 27648000 |
pg_attribute_relid_attnam_index | 243.5 | 361627648
pg_catalog | pg_attribute | 9.0 | 27648000 |
pg_attribute_relid_attnum_index | 168.5 | 253894656
pg_catalog | pg_type | 10.8 | 4890624 | pg_type_oid_index
| 135.8 | 28721152
pg_catalog | pg_type | 10.8 | 4890624 | pg_type_typname_nsp_index
| 287.2 | 60956672
pg_catalog | pg_class | 10.3 | 4562944 | pg_class_oid_index
| 94.1 | 26689536
pg_catalog | pg_class | 10.3 | 4562944 | pg_class_relname_nsp_index
| 270.1 | 77144064
pg_catalog | pg_depend | 5.3 | 3948544 |
pg_depend_reference_index | 337.0 | 156901376
pg_catalog | pg_depend | 5.3 | 3948544 | pg_depend_depender_index
| 359.6 | 167436288
pg_catalog | pg_index | 6.1 | 1130496 | pg_index_indexrelid_index
| 72.9 | 7659520
pg_catalog | pg_index | 6.1 | 1130496 | pg_index_indrelid_index
| 72.9 | 7659520
(10 rows)

Thanks in advance