condemned for being unhappy

Some tend to think Christians are evil or mistaken or to be scolded if they are "down in the dumps," "grief-stricken," or "swimming in the blues." Have these people ever read the Psalms (i.e. Psalm 73) or the account of Jesus in the garden at Gethsemene (Matthew 26)? You are scorned if you are a Christian and not happy with life; after all, you have a relationship with God, so why wouldn't you be happy? If you're a Christian and not happy, then you're really not a Christian at all (so some say). And how come, if you're lonely, forsaken, and full of grief and pain, it is always a chemical unbalance in the brain? Can't it ever be very real situations in a very real fallen world immersed in very real problems?